[
    {
        "utterance": "what type of aircraft does eastern fly from atlanta to denver before 6 pm",
        "slots": "O O O O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "aircraft"
    },
    {
        "utterance": "show me the fares from dallas to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "fares and flights from pittsburgh to philadelphia",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "the flight will originate from boston",
        "slots": "O O O O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available from denver to philadelphia on monday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the first flight after 8 am from boston to san francisco",
        "slots": "O O O B-flight_mod O B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from boston to san francisco that arrive in the afternoon",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "give me a list of flights between denver and oakland",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from san francisco to boston that leaves after 8 pm",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i need late flight wednesday from oakland to salt lake city",
        "slots": "O O B-flight_mod O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there from newark to seattle on saturday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to see all the economy fares from baltimore to philadelphia",
        "slots": "O O O O O O O B-economy O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me times for flights from san francisco to atlanta",
        "slots": "O O B-flight_time O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight_time"
    },
    {
        "utterance": "all flights phoenix to sfo",
        "slots": "O O B-fromloc.city_name O B-toloc.airport_code",
        "intent": "flight"
    },
    {
        "utterance": "let 's see how much would a direct flight from atlanta to denver be on may seventh",
        "slots": "O O O O O O O B-connect O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.month_name B-depart_date.day_number",
        "intent": "airfare"
    },
    {
        "utterance": "what flights do you have leaving denver and arriving in san francisco",
        "slots": "O O O O O O B-fromloc.city_name O O O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "fares from dallas to baltimore",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "list flights from pittsburgh to baltimore",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all the night fares between philadelphia and san francisco",
        "slots": "O O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "my destination is san francisco i live in denver i would like a flight on august thirtieth in the morning on any airline that will get me there",
        "slots": "O O O B-toloc.city_name I-toloc.city_name O O O B-fromloc.city_name O O O O O O B-depart_date.month_name B-depart_date.day_number O O B-depart_time.period_of_day O O O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "show me all overnight flights from washington dc to san francisco and list their fares",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name I-toloc.city_name O O O O",
        "intent": "flight"
    },
    {
        "utterance": "show me the schedule for airlines leaving pittsburgh going to san francisco for next monday",
        "slots": "O O O B-flight_time O O O B-fromloc.city_name O O B-toloc.city_name I-toloc.city_name O B-depart_date.date_relative B-depart_date.day_name",
        "intent": "flight_time"
    },
    {
        "utterance": "show me the cheapest one way flights from dallas to san francisco leaving dallas after 4 pm",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "flights from houston to los angeles departing after 1026",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "from philadelphia to toronto",
        "slots": "O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what airline besides continental flies between boston and denver",
        "slots": "O O B-mod B-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "can you show me the list of flights that fly from washington to san francisco via dallas",
        "slots": "O O O O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from dallas to baltimore at economy level",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-economy O",
        "intent": "flight"
    },
    {
        "utterance": "find travel arrangements for a round trip flight from dallas to pittsburgh arriving after 8 pm before 10 pm",
        "slots": "O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "oakland to denver",
        "slots": "B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights leave from nashville to phoenix",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from baltimore to dallas",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "does us air fly from washington dc to denver",
        "slots": "O B-airline_name I-airline_name O O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what does ground transportation look like in oakland",
        "slots": "O O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show me all prices of first class from baltimore to dallas",
        "slots": "O O O O O B-class_type I-class_type O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "okay i 'd like to fly from denver to pittsburgh",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "okay tell me what the earliest flight is that leaves between atlanta and denver",
        "slots": "O O O O O B-flight_mod O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to fly from milwaukee to orlando on either wednesday evening or thursday morning",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name B-depart_time.period_of_day B-or B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "flight between st. petersburg and charlotte",
        "slots": "O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights leave from chicago to seattle on saturday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "also show me the first flight from atlanta to denver on a thursday",
        "slots": "O O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest flight from denver to pittsburgh",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from boston to pittsburgh",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "can you list all flights between milwaukee and chicago",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from boston to pittsburgh",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like a flight from st. petersburg to miami on that next thursday",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_date.date_relative B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what types of ground transportation are there to san francisco airport",
        "slots": "O O O O O O O O B-toloc.airport_name I-toloc.airport_name I-toloc.airport_name",
        "intent": "ground_service"
    },
    {
        "utterance": "please show me all round trip flights from new york to miami",
        "slots": "O O O O B-round_trip I-round_trip O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "information on afternoon flights from philadelphia to denver",
        "slots": "O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to fly from philadelphia to dallas to san francisco",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights direct only from boston to san francisco or oakland that arrive before 10 am local time",
        "slots": "O O O O B-connect O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-or B-toloc.city_name O O B-arrive_time.time_relative O O O B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what flight do you have from dallas to denver on august twenty seventh in the morning",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to find the cheapest fare from atlanta to dallas",
        "slots": "O O O O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i 'd like to find the least expensive one way fare from boston to philadelphia",
        "slots": "O O O O O O B-cost_relative I-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what airlines have flights from boston to philadelphia that leave before 630 am",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "airline"
    },
    {
        "utterance": "show me the flights from baltimore to oakland",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is your last flight leaving san francisco and arriving in denver",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name I-fromloc.city_name O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available tomorrow from denver to philadelphia",
        "slots": "O O O O B-depart_date.today_relative O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me airline abbreviations",
        "slots": "O O O O",
        "intent": "airline"
    },
    {
        "utterance": "what flights go from newark to boston after 5 pm",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what price is a limousine service in boston",
        "slots": "O O O O B-transport_type O O B-city_name",
        "intent": "ground_fare"
    },
    {
        "utterance": "what kind of aircraft is used on the first class american airlines flight from philadelphia to san francisco with a dallas stopover",
        "slots": "O O O O O O O O B-class_type I-class_type B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-fromloc.city_name O",
        "intent": "aircraft"
    },
    {
        "utterance": "ground transportation san francisco",
        "slots": "O O B-city_name I-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show me all us air flights from atlanta to denver for the day after tomorrow",
        "slots": "O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.today_relative I-depart_date.today_relative I-depart_date.today_relative I-depart_date.today_relative",
        "intent": "flight"
    },
    {
        "utterance": "give me the flights from new york to las vegas and memphis to las vegas on sunday",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "all right what i 'd like to do is find the cheapest one way fare from boston to denver",
        "slots": "O O O O O O O O O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "flights from indianapolis nashville memphis to seattle",
        "slots": "O O B-fromloc.city_name B-fromloc.city_name B-fromloc.city_name O O",
        "intent": "flight"
    },
    {
        "utterance": "please list the flights from dallas fort worth to dc baltimore on july twenty third",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.state_code B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show flights from san francisco to denver on wednesday and thursday",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from atlanta to san francisco which leave atlanta after 5 o'clock pm tomorrow",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time I-depart_time.time B-depart_date.today_relative",
        "intent": "flight"
    },
    {
        "utterance": "is there a direct flight from denver to pittsburgh in the morning of august thirty first that is nonstop",
        "slots": "O O O B-connect O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O O B-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "how far from the airport in the dallas fort worth airport is dallas",
        "slots": "O O O O O O O B-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name O B-fromloc.city_name",
        "intent": "distance"
    },
    {
        "utterance": "i 'd like to see the flights from baltimore to philadelphia",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the cheapest flights from san francisco to philadelphia",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to leave boston at 838 and arrive in denver at 1110 in the morning",
        "slots": "O O O O B-fromloc.city_name O B-depart_time.time O O O B-toloc.city_name O B-arrive_time.time O O B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what 's the earliest flight from boston to bwi that serves dinner",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.airport_code O O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "what flights go from newark to boston after 1024 in the morning",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "round trip first class fares new york to miami",
        "slots": "B-round_trip I-round_trip B-class_type I-class_type O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "how far is the airport from downtown pittsburgh",
        "slots": "O O O O O O O B-fromloc.city_name",
        "intent": "distance"
    },
    {
        "utterance": "show me a list of the flights from san francisco to boston",
        "slots": "O O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights stop in atlanta before noon",
        "slots": "O O O O B-stoploc.city_name B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight flying from pittsburgh to atlanta on july fifth",
        "slots": "O O O B-flight_mod O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what do you know about car rental in denver",
        "slots": "O O O O O B-transport_type I-transport_type O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what is the economy thrift fare from boston to washington",
        "slots": "O O O B-economy B-class_type O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "list all the flights that takeoff from general mitchell international",
        "slots": "O O O O O O O B-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "display all fare codes",
        "slots": "O O O O",
        "intent": "airfare"
    },
    {
        "utterance": "please give me all flights from long beach to memphis",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me flights from atlanta to baltimore",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please give me flights leaving san francisco and going to pittsburgh",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights on sunday from tampa to charlotte",
        "slots": "O O O O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list flights tomorrow from san diego to phoenix",
        "slots": "O O B-depart_date.today_relative O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "all northwest and united airlines flights with stopovers in denver",
        "slots": "O B-airline_name O B-airline_name I-airline_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show flights from philadelphia to boston",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to fly from denver to san francisco with at least one stop",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-flight_stop I-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "i want to fly from boston to baltimore",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the lowest one way fares from pittsburgh to atlanta",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "please show me airlines with round trip flights from boston to denver stop philadelphia",
        "slots": "O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name O B-stoploc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "what is fare code qw",
        "slots": "O O O O B-fare_basis_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "can you give me information on transportation from the airport in philadelphia to downtown philadelphia",
        "slots": "O O O O O O O O O O O B-fromloc.city_name O O B-toloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what 's the last flight from atlanta to boston",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the latest flight from las vegas to denver",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list flights from san francisco to pittsburgh",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from denver to pittsburgh arrive before 8 in the morning",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time O O B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what are your flights from pittsburgh to baltimore",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "newark to cleveland",
        "slots": "B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me ground transportation in san francisco",
        "slots": "O O O O O B-city_name I-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what is the ground transport in denver",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what is the earliest flight from ontario to memphis",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "information on american airlines from fort worth texas to philadelphia",
        "slots": "O O B-airline_name I-airline_name O B-fromloc.city_name I-fromloc.city_name B-fromloc.state_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "now i 'd like a schedule for the flights on tuesday morning from oakland no from dallas fort worth to atlanta",
        "slots": "O O O O O B-flight_time O O O O B-depart_date.day_name B-depart_time.period_of_day O B-fromloc.city_name O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight_time"
    },
    {
        "utterance": "are there any american airlines flights flying into pittsburgh between 12 and 4 in the afternoon",
        "slots": "O O O B-airline_name I-airline_name O O O B-toloc.city_name O B-depart_time.start_time O B-depart_time.end_time O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what flights leave atlanta at about 3 in the afternoon and arrive in san francisco",
        "slots": "O O O B-fromloc.city_name O B-depart_time.time_relative B-depart_time.time O O B-depart_time.period_of_day O O O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what first class flights are available from denver to baltimore on july twenty fifth 1991",
        "slots": "O B-class_type I-class_type O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number B-depart_date.year",
        "intent": "flight"
    },
    {
        "utterance": "i would like information on any flights from san francisco to pittsburgh arriving in pittsburgh before 8 am tuesday morning",
        "slots": "O O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time B-arrive_date.day_name B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "flights from ontario to florida",
        "slots": "O O B-fromloc.city_name O B-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "requesting flight information for flight from boston to baltimore on tuesday",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "ground transport denver",
        "slots": "O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show me flights from san francisco to pittsburgh on a sunday",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what city is the airport mco in",
        "slots": "O O O O O B-fromloc.airport_code O",
        "intent": "city"
    },
    {
        "utterance": "what flights go from boston to washington next tuesday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.date_relative B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what is fare code f",
        "slots": "O O O O B-fare_basis_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "i need to know information for flights leaving dallas on tuesday evening and returning to atlanta",
        "slots": "O O O O O O O O B-fromloc.city_name O B-depart_date.day_name B-depart_time.period_of_day O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the last flight from atlanta to boston",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest nonstop flight from washington to san francisco",
        "slots": "O O O B-flight_mod B-flight_stop O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please tell me the type of aircraft used from atlanta to denver before 12 o'clock noon",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time I-depart_time.time",
        "intent": "aircraft"
    },
    {
        "utterance": "i need to make a trip starting in boston going to dallas denver oakland and back to boston",
        "slots": "O O O O O O O O B-fromloc.city_name O O B-toloc.city_name B-toloc.city_name B-toloc.city_name O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "morning flights from pittsburgh to atlanta on wednesday",
        "slots": "B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights to love field from all other airports",
        "slots": "O O O O O B-toloc.airport_name I-toloc.airport_name O O O O",
        "intent": "flight"
    },
    {
        "utterance": "train to newark",
        "slots": "B-transport_type O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "please list any flight available leaving oakland california tuesday arriving philadelphia wednesday",
        "slots": "O O O O O O B-fromloc.city_name B-fromloc.state_name B-depart_date.day_name O B-toloc.city_name B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "which flights depart burbank after noon and arrive in denver by 6 pm",
        "slots": "O O O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time O O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from denver to philadelphia which leave next saturday afternoon",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.date_relative B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "baltimore to philadelphia",
        "slots": "B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the fare from dallas to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i would like to fly delta airlines from atlanta to pittsburgh",
        "slots": "O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from kansas city to denver after 845 in the morning",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "does united airlines fly from boston to dallas fort worth",
        "slots": "O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the latest dinner flight from baltimore to oakland",
        "slots": "O O O B-flight_mod B-meal_description O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want a flight from atlanta to washington that leaves after 3 pm",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "on flight us air 2153 from san francisco to baltimore what time and what city does the plane stop in between",
        "slots": "O O B-airline_name I-airline_name B-flight_number O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-flight_time O O O O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from denver to pittsburgh and atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the cheapest flights round trip from new york to san jose arriving in san jose before 7 pm",
        "slots": "O O O B-cost_relative O B-round_trip I-round_trip O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-toloc.city_name I-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "nonstop flights denver to boston",
        "slots": "B-flight_stop O B-toloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from memphis to tacoma",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me what fare codes symbols stand for",
        "slots": "O O O O O O O O",
        "intent": "abbreviation"
    },
    {
        "utterance": "pm flights leaving san francisco arriving boston",
        "slots": "B-depart_time.period_of_day O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what about flights from boston to san diego",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "ground transportation baltimore",
        "slots": "O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "dallas to san francisco leaving after 4 in the afternoon please",
        "slots": "B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_time.time_relative B-depart_time.time O O B-depart_time.period_of_day O",
        "intent": "flight"
    },
    {
        "utterance": "can you list all the airlines that have flights from boston to san francisco",
        "slots": "O O O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "what ground transportation is available in atlanta",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what ground transportation is available in san francisco",
        "slots": "O O O O O O B-city_name I-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i 'd like to see all the one way flights from denver to pittsburgh",
        "slots": "O O O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list daily flights from oakland to boston using delta airlines",
        "slots": "O B-flight_days O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "could i have listings of flights from new york to montreal canada leaving on wednesday",
        "slots": "O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-toloc.country_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "also show me flights from san francisco to pittsburgh on tuesday",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available thursday afternoon from baltimore to atlanta",
        "slots": "O O O O B-depart_date.day_name B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "may i see all the flights from washington to san francisco please",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "display all the flights from baltimore to dallas which leave after 4 pm",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me round trips from houston to las vegas nonstop",
        "slots": "O O B-round_trip I-round_trip O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "list all flights from denver to san francisco on wednesday afternoon",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what is ff",
        "slots": "O O B-airline_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "flights from pittsburgh to newark",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like united airlines flights from denver to baltimore",
        "slots": "O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like a twa flight from atlanta to pittsburgh with a stopover in fort worth dallas please",
        "slots": "O O O O B-airline_code O O B-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name I-stoploc.city_name B-stoploc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "show me ground transportation information for pittsburgh",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show me first class round trip flights from new york to miami i want the cheapest first class fare please",
        "slots": "O O B-class_type I-class_type B-round_trip I-round_trip O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O B-cost_relative B-class_type I-class_type O O",
        "intent": "flight"
    },
    {
        "utterance": "list all flights at general mitchell international",
        "slots": "O O O O B-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from st. paul to houston",
        "slots": "O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "tell me about flights from toronto to salt lake city leaving after 530 pm",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "is there a flight around 3 pm from charlotte to minneapolis",
        "slots": "O O O O B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list flights between denver and boston",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what does code y mean",
        "slots": "O O O B-fare_basis_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "what flights are there from dallas to houston",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how many us air flights leave from washington",
        "slots": "O O B-airline_name I-airline_name O O O B-fromloc.city_name",
        "intent": "quantity"
    },
    {
        "utterance": "what airlines fly from boston to atlanta",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "list all flights from baltimore to atlanta after noon thursday nonstop",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time B-depart_date.day_name B-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "what time is the last flight from washington to san francisco",
        "slots": "O B-flight_time O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight_time"
    },
    {
        "utterance": "give me the flights and fares on december twenty seventh from orlando to indianapolis airfare",
        "slots": "O O O O O O O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O B-fromloc.city_name O B-toloc.city_name O",
        "intent": "flight+airfare"
    },
    {
        "utterance": "nonstop flights from seattle to denver",
        "slots": "B-flight_stop O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from denver to san francisco on wednesday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from denver to philadelphia",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight from nashville to st. louis that arrives in st. louis around 6 pm and is nonstop",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-toloc.city_name I-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time O O B-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "cheapest airfare from orlando to tacoma",
        "slots": "B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "list the nonstop flights from miami to new york on a sunday along with the fares that are less than 466 dollars",
        "slots": "O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-arrive_date.day_name O O O O O O B-cost_relative O B-fare_amount I-fare_amount",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from boston to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what airlines have business class",
        "slots": "O O O B-class_type I-class_type",
        "intent": "airline"
    },
    {
        "utterance": "what are the flights from dallas to philadelphia",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to originate my flight in washington dc stop in denver with the destination city of san francisco",
        "slots": "O O O O O O O O B-fromloc.city_name B-fromloc.state_code O O B-stoploc.city_name O O O O O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flight from denver to pittsburgh arrives earliest in the morning",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-arrive_time.period_mod O O B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "can i get a rental car in dallas",
        "slots": "O O O O B-transport_type I-transport_type O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "information of a flight from atlanta to pittsburgh",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the flights arriving in boston from atlanta on august fifth",
        "slots": "O O O O O B-toloc.city_name O B-fromloc.city_name O B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "list all flights that leave from baltimore or denver or pittsburgh and arrive in philadelphia",
        "slots": "O O O O O O B-fromloc.city_name B-or B-fromloc.city_name B-or B-fromloc.city_name O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list me the flights and their cost of all airlines flying from denver to baltimore",
        "slots": "O O O O O O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight+airfare"
    },
    {
        "utterance": "please list the prices for a rental car in pittsburgh",
        "slots": "O O O O O O B-transport_type I-transport_type O B-city_name",
        "intent": "ground_fare"
    },
    {
        "utterance": "i 'd like a flight from detroit to st. petersburg for tuesday",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights in the month of december from atlanta to denver which stop in boston",
        "slots": "O O O O O O O O B-depart_date.month_name O B-fromloc.city_name O B-toloc.city_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to fly from pittsburgh to atlanta",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from chicago to kansas city in the morning",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from atlanta to washington dc leaving on thursday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights go from baltimore to newark wednesday morning",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what is fare code h",
        "slots": "O O O O B-fare_basis_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "i 'd like to get a flight leaving san francisco and arriving at philadelphia pennsylvania",
        "slots": "O O O O O O O O B-fromloc.city_name I-fromloc.city_name O O O B-toloc.city_name B-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "can you show me the flights from baltimore to dallas",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from kansas city to chicago next wednesday arrive at chicago at about 7 pm",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-depart_date.date_relative B-depart_date.day_name O O B-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i would like to fly from pittsburgh to atlanta on us air at the latest time possible in the evening",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name O O B-flight_mod I-flight_mod I-flight_mod O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what classes of service does twa have",
        "slots": "O O O O O B-airline_code O",
        "intent": "flight"
    },
    {
        "utterance": "could you please show me all the weekday flights between denver and dallas",
        "slots": "O O O O O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the flights on wednesday from denver to washington arriving in washington between 1115 am and 1245 pm",
        "slots": "O O O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name O O B-toloc.city_name O B-arrive_time.start_time I-arrive_time.start_time O B-arrive_time.end_time I-arrive_time.end_time",
        "intent": "flight"
    },
    {
        "utterance": "please list the friday afternoon flights from san jose to dallas on american airlines",
        "slots": "O O O B-depart_date.day_name B-depart_time.period_of_day O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there on saturdays from philadelphia to denver",
        "slots": "O O O O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list number of people that can be carried on each type of plane that flies between pittsburgh and baltimore",
        "slots": "O O O O O O O O O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "capacity"
    },
    {
        "utterance": "are there any flights from milwaukee to tacoma on friday june eleventh",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what is sa",
        "slots": "O O B-days_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "what is the round trip cost of a first class ticket from boston to san francisco",
        "slots": "O O O B-round_trip I-round_trip O O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "round trip flights between houston and las vegas",
        "slots": "B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list the monday morning flights from kansas city to atlanta",
        "slots": "O O O B-depart_date.day_name B-depart_time.period_of_day O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "dl 296 denver to philadelphia what is the fare",
        "slots": "B-airline_code B-flight_number B-fromloc.city_name O B-toloc.city_name O O O O",
        "intent": "airfare"
    },
    {
        "utterance": "show me the flights from baltimore to pittsburgh",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is fare code m",
        "slots": "O O O O B-fare_basis_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "flights from columbus to milwaukee",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights do you have from burbank to tacoma washington",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all united airlines first class flights",
        "slots": "O O O B-airline_name I-airline_name B-class_type I-class_type O",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from dallas to pittsburgh",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please give me flights from atlanta to boston on wednesday morning and thursday afternoon",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me all round trip flights between houston and las vegas",
        "slots": "O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from minneapolis to seattle on july second",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "flights from boston to pittsburgh",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need to take ten people from denver to san diego with a stopover in phoenix please give me the flights",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "from denver to baltimore",
        "slots": "O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need to get downtown from the denver airport",
        "slots": "O O O O O O O B-fromloc.airport_name I-fromloc.airport_name",
        "intent": "ground_service"
    },
    {
        "utterance": "could you show me all weekday flights from phoenix to denver",
        "slots": "O O O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from san francisco to newark that leave after 11 pm",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what is the latest flight from salt lake city to st. petersburg",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "okay i 'd like a flight on us air from indianapolis to san diego in the afternoon what 's available",
        "slots": "O O O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_time.period_of_day O O O",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there wednesday morning from atlanta to philadelphia",
        "slots": "O O O O B-depart_date.day_name B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "okay that one 's great too now we 're going to go on april twenty second dallas to washington the latest nighttime departure one way",
        "slots": "O O O O O O O O O O O O O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number B-fromloc.city_name O B-toloc.city_name O B-flight_mod B-depart_time.period_of_day O B-round_trip I-round_trip",
        "intent": "flight"
    },
    {
        "utterance": "how much does it cost to rent a car in tacoma",
        "slots": "O O O O O O O O B-transport_type O B-city_name",
        "intent": "ground_fare"
    },
    {
        "utterance": "which airlines serve atlanta",
        "slots": "O O O B-city_name",
        "intent": "airline"
    },
    {
        "utterance": "show me flights from pittsburgh to san francisco on friday leaving after 12 noon",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what are the times that you have planes leaving from san francisco going to pittsburgh on july seventh",
        "slots": "O O O B-flight_time O O O O O O B-fromloc.city_name I-fromloc.city_name O O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight_time"
    },
    {
        "utterance": "list all nonstop flights on tuesday before noon from charlotte to baltimore",
        "slots": "O O B-flight_stop O O B-arrive_date.day_name B-arrive_time.time_relative B-arrive_time.time O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights that go from new york to miami on tuesday and go from miami to new york on sunday",
        "slots": "O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'm interested in a flight on american airlines from dallas to washington",
        "slots": "O O O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all us air flights from miami to cleveland leaving on sunday afternoon",
        "slots": "O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest flight from long beach to memphis",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "ground transportation oakland",
        "slots": "O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "also show me all flights from oakland to denver",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all the flights that arrive at general mitchell international airport",
        "slots": "O O O O O O O B-toloc.airport_name I-toloc.airport_name I-toloc.airport_name I-toloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "show flights first class on american from dallas fort worth to san francisco international",
        "slots": "O O B-class_type I-class_type O B-airline_name O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.airport_name I-toloc.airport_name I-toloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "do you have a flight from boston to fort worth",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what airlines have nonstop early afternoon flights from boston to denver",
        "slots": "O O O B-flight_stop B-depart_time.period_of_day B-arrive_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "what are the flights from san francisco to denver",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all the flights from atlanta to baltimore on any airline on thursday",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "give me a list of airlines in pittsburgh",
        "slots": "O O O O O O O B-city_name",
        "intent": "airline"
    },
    {
        "utterance": "show me all flights from pittsburgh to dallas",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "hello i would like to plan a flight on american airlines from boston to denver",
        "slots": "O O O O O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the coach fare between boston and atlanta on delta",
        "slots": "O O O B-class_type O O B-fromloc.city_name O B-toloc.city_name O B-airline_name",
        "intent": "airfare"
    },
    {
        "utterance": "leave flight from boston to atlanta leave boston approximately 1 pm",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "does american airlines fly from atlanta to philadelphia",
        "slots": "O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all nonstop flights on sunday from tampa to charlotte",
        "slots": "O O B-flight_stop O O B-arrive_date.day_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is there a flight between oakland and boston with a stopover in dallas fort worth on twa",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name I-stoploc.city_name I-stoploc.city_name O B-airline_code",
        "intent": "flight"
    },
    {
        "utterance": "find a flight from toronto to san diego with a layover in san francisco on air canada",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name I-stoploc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "how many flights are there between san francisco and philadelphia on august eighteenth",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "quantity"
    },
    {
        "utterance": "what time does twa depart from boston to go to san francisco",
        "slots": "O B-flight_time O B-airline_code O O B-fromloc.city_name O O O B-toloc.city_name I-toloc.city_name",
        "intent": "flight_time"
    },
    {
        "utterance": "i am interested in a flight from cincinnati to burbank the flight should be american and leave in the afternoon i need to know the aircraft and flight number",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-airline_name O O O O B-depart_time.period_of_day O O O O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "list flights from phoenix to detroit on wednesday",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i need information on a flight from washington to fort worth",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the price of a one way fare from atlanta to boston",
        "slots": "O O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what are the flights on tuesday october first from atlanta to baltimore",
        "slots": "O O O O O B-depart_date.day_name B-depart_date.month_name B-class_type O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how much is a first class ticket from washington to san francisco leaving on friday",
        "slots": "O O O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_date.day_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me first class flights from pittsburgh to san francisco on friday",
        "slots": "O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from denver to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what does the fare code f and fn mean",
        "slots": "O O O O O B-fare_basis_code O O O",
        "intent": "abbreviation"
    },
    {
        "utterance": "explain restriction ap please",
        "slots": "O O B-restriction_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "what is fare code h",
        "slots": "O O O O B-fare_basis_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "what flights from pittsburgh to newark after 1020 pm",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "which flight from pittsburgh to baltimore carries the smallest number of passengers",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O O B-mod O O O",
        "intent": "flight"
    },
    {
        "utterance": "i would like the cheapest flight from boston to san francisco",
        "slots": "O O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "all flights from boston to washington dc on november eleventh",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "now i need a one way flight from pittsburgh to denver",
        "slots": "O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show flights between boston and denver",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "now show me the flights from denver to philadelphia on a saturday",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights on delta that go through atlanta",
        "slots": "O O O O O B-airline_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights on saturday from dallas to san francisco nonstop",
        "slots": "O O O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "ground transportation in baltimore",
        "slots": "O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "list all flights on continental from denver to chicago which depart after 934 pm",
        "slots": "O O O O B-airline_name O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what flights leave washington dc and arrive in san francisco on wednesday",
        "slots": "O O O B-fromloc.city_name B-fromloc.state_code O O O B-toloc.city_name I-toloc.city_name O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights leaving from san francisco to denver on september thirtieth",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight this sunday from miami to las vegas and i would prefer a morning flight",
        "slots": "O O O O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O O B-depart_time.period_of_day O",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from boston to oakland",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights leaving from love field",
        "slots": "O O O O O O B-fromloc.airport_name I-fromloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available from pittsburgh to baltimore on thursday morning",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i now need a flight from san jose to houston leaving on sunday the fourth",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name O B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "flights from cincinnati to denver on american airlines",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "please show me flights which cost less than or equal to 466 dollars from new york to miami leaving on a tuesday",
        "slots": "O O O O O O B-cost_relative O O O O B-fare_amount I-fare_amount O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all first class fares from new york to miami leaving on a tuesday",
        "slots": "O O O B-class_type I-class_type O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O B-depart_date.day_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me flights from dallas to baltimore",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flight goes from denver to baltimore first class on united airlines arriving on may seventh",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-class_type I-class_type O B-airline_name I-airline_name O O B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what 's the difference between fare code q and fare code f",
        "slots": "O O O O O O O B-fare_basis_code O O O B-fare_basis_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "show afternoon flights from houston to dallas",
        "slots": "O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "okay on tuesday june first i 'd like to go from phoenix to detroit in the late afternoon",
        "slots": "O O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day I-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from boston to denver early am on tuesday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.period_mod B-depart_time.period_of_day O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from boston to baltimore",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the northwest airlines flights that leave denver before noon",
        "slots": "O O B-airline_name I-airline_name O O O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me the cities served by canadian airlines international",
        "slots": "O O O O O O B-airline_name I-airline_name I-airline_name",
        "intent": "city"
    },
    {
        "utterance": "yes what flights will be used on july seventh in the morning from atlanta to boston",
        "slots": "O O O O O O O B-depart_date.month_name B-depart_date.day_number O O B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to find a flight that goes from boston to orlando i would like it to have a stop in new york and i would like a flight that serves breakfast",
        "slots": "O O O O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O O O O O O B-stoploc.city_name I-stoploc.city_name O O O O O O O O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "what is the least expensive flight today from atlanta to san francisco",
        "slots": "O O O B-cost_relative I-cost_relative O B-depart_date.today_relative O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "us air flights departing from charlotte around 1 pm",
        "slots": "B-airline_name I-airline_name O O O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what flights does delta have between boston and san francisco",
        "slots": "O O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the cheapest one way flight from atlanta to pittsburgh",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to fly from pittsburgh to atlanta",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what type of aircraft flies from pittsburgh to baltimore",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "aircraft"
    },
    {
        "utterance": "i 'm starting from denver",
        "slots": "O O O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how many flights does american airlines have from boston to atlanta",
        "slots": "O O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "quantity"
    },
    {
        "utterance": "what is the cheapest flight from san francisco to pittsburgh on sunday",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights on continental leaving denver",
        "slots": "O O O O B-airline_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from new york city to las vegas",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the cheapest fares from miami to new york leaving on a sunday",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-depart_date.day_name",
        "intent": "airfare"
    },
    {
        "utterance": "what ground transportation is available from the pittsburgh airport to the town",
        "slots": "O O O O O O O B-fromloc.airport_name I-fromloc.airport_name O O O",
        "intent": "ground_service"
    },
    {
        "utterance": "i want to know the cheapest way to fly from denver to oakland",
        "slots": "O O O O O B-cost_relative O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please give me flight schedules from baltimore to philadelphia",
        "slots": "O O O B-flight_time I-flight_time O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please give me the prices for all flights from philadelphia to denver airport next sunday",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.airport_name I-toloc.airport_name B-depart_date.date_relative B-depart_date.day_name",
        "intent": "airfare"
    },
    {
        "utterance": "i would like an early morning flight on june first from chicago into seattle on continental airlines",
        "slots": "O O O O B-depart_time.period_of_day B-depart_time.period_of_day O O B-depart_date.month_name B-depart_date.day_number O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "please list the flight times from newark to boston",
        "slots": "O O O B-flight_time I-flight_time O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight_time"
    },
    {
        "utterance": "what flights depart san francisco after 4 pm and fly to washington via indianapolis",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O O O B-toloc.city_name O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all the flights from philadelphia to cincinnati",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from st. petersburg to toronto that arrive before noon",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there from newark to chicago on continental",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the departure time of the latest flight of united airlines from denver to boston",
        "slots": "O O O B-flight_time I-flight_time O O B-flight_mod O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight_time"
    },
    {
        "utterance": "can you tell me the flights on october fifteenth 1991 from boston to oakland",
        "slots": "O O O O O O O B-depart_date.month_name B-depart_date.day_number B-depart_date.year O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please show me all one way first class flights from indianapolis to memphis",
        "slots": "O O O O B-round_trip I-round_trip B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to fly from boston to atlanta",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is there transportation from the atlanta airport to downtown atlanta",
        "slots": "O O O O O B-fromloc.airport_name I-fromloc.airport_name O O B-toloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "could you please tell me the first flight leaving baltimore to san francisco on a 747 on august twenty seventh",
        "slots": "O O O O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-aircraft_code O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from boston to san francisco arriving before 1 pm",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what ground transportation is there in denver",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what flights go from dallas to tampa",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from dallas to pittsburgh which leave on monday after 8 o'clock am",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time I-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "can you tell me what aircraft is used for delta flight 1222 from kansas city to salt lake city",
        "slots": "O O O O O O O O O B-airline_name O B-flight_number O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "aircraft"
    },
    {
        "utterance": "tell me which airlines have flights from pittsburgh to san francisco on monday september second",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number",
        "intent": "airline"
    },
    {
        "utterance": "now i need a flight leaving fort worth and arriving in denver no later than 2 pm next monday",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O O O B-toloc.city_name B-arrive_time.time_relative I-arrive_time.time_relative I-arrive_time.time_relative B-arrive_time.time I-arrive_time.time B-arrive_date.date_relative B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "list all afternoon flights leaving baltimore and arriving in atlanta on thursday",
        "slots": "O O B-depart_time.period_of_day O O B-fromloc.city_name O O O B-toloc.city_name O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "which northwest flights stop in denver before noon",
        "slots": "O B-airline_name O O O B-stoploc.city_name B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me the airlines that use love field",
        "slots": "O O O O O O B-airport_name I-airport_name",
        "intent": "airline"
    },
    {
        "utterance": "find travel arrangements for a round trip flight from dallas to pittsburgh arriving after 8 pm",
        "slots": "O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what does the meal code s stand for",
        "slots": "O O O B-meal O B-meal_code O O",
        "intent": "abbreviation"
    },
    {
        "utterance": "is there ground transportation in dallas from the dallas airport to downtown dallas",
        "slots": "O O O O O B-city_name O O B-fromloc.airport_name I-fromloc.airport_name O O B-toloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what are the cheapest one way flights from atlanta to denver",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "all flights from boston to washington dc",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from denver to philadelphia on saturday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like the first flight from dallas into houston on march first and the last flight from houston back to dallas on march first",
        "slots": "O O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number O O B-flight_mod O O B-fromloc.city_name O O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "i would like information for flights from baltimore to dallas on early tuesday morning",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.period_mod B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what is the meaning of restriction ap80",
        "slots": "O O O O O O B-restriction_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "list the airlines that have nonstop afternoon flights from boston to oakland",
        "slots": "O O O O O B-flight_stop B-arrive_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "please show me flights from pittsburgh to atlanta on wednesday morning serving breakfast",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "can you tell me the time a flight would leave from atlanta to boston in the afternoon",
        "slots": "O O O O O B-flight_time O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight_time"
    },
    {
        "utterance": "can i see ground transportation from long beach airport to downtown",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O O O",
        "intent": "ground_service"
    },
    {
        "utterance": "list all flights leaving denver on continental on sunday after 2134",
        "slots": "O O O O B-fromloc.city_name O B-airline_name O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i would like the first flight from toronto to montreal next friday",
        "slots": "O O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name B-depart_date.date_relative B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the fares for flights serving a meal from boston to pittsburgh before noon on thursday",
        "slots": "O O O O O O O O B-meal O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time O B-depart_date.day_name",
        "intent": "airfare"
    },
    {
        "utterance": "can you show me flights from dallas to atlanta on tuesday night",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i need flights that arrive in baltimore from pittsburgh",
        "slots": "O O O O O O B-toloc.city_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from atlanta to baltimore",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest fare from baltimore to dallas in any class",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name O O O",
        "intent": "airfare"
    },
    {
        "utterance": "show me the united flights from denver to baltimore",
        "slots": "O O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is hp",
        "slots": "O O B-airline_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "what does restriction ap 80 mean",
        "slots": "O O O B-restriction_code I-restriction_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "what are the flights and prices from la to charlotte for monday morning",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest round trip fare from pittsburgh to atlanta",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i 'd like to fly from cleveland to indianapolis tomorrow morning as early as possible what 's available",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.today_relative B-depart_time.period_of_day O B-flight_mod O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from boston to denver",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the earliest flight from atlanta to boston",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the first class fares from boston to pittsburgh on thursday",
        "slots": "O O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me the flights from boston to pittsburgh on wednesday and thursday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from montreal to las vegas on saturday",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the last flight on wednesday from atlanta to denver",
        "slots": "O O O B-flight_mod O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "are there any airlines that have flights from boston to philadelphia that leave before 630 am",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "airline"
    },
    {
        "utterance": "what is the cost of a business class ticket going from boston to dallas leaving july first",
        "slots": "O O O O O O B-class_type I-class_type O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "airfare"
    },
    {
        "utterance": "what continental flights go from chicago to seattle before 10 am in the morning that have a meal",
        "slots": "O B-airline_name O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O O B-depart_time.period_of_day O O O B-meal",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from indianapolis",
        "slots": "O O O O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which airlines have flights from denver to pittsburgh",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "show flights on us air from pittsburgh to oakland connecting through denver",
        "slots": "O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name B-connect O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to go from boston to san francisco stopping in pittsburgh",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "oh let 's see does eastern airline have a flight from atlanta to washington",
        "slots": "O O O O O B-airline_name I-airline_name O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need to take ten people from phoenix to san diego please give me the flights during week days",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O O B-flight_mod I-flight_mod I-flight_mod",
        "intent": "flight"
    },
    {
        "utterance": "does any airline offer dc10 service between denver and boston",
        "slots": "O O O O B-aircraft_code O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "what flights are available saturday to san francisco from dallas",
        "slots": "O O O O B-depart_date.day_name O B-toloc.city_name I-toloc.city_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights depart from pittsburgh and arrive in oakland california",
        "slots": "O O O O B-fromloc.city_name O O O B-toloc.city_name B-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "does midwest express have any flights",
        "slots": "O B-airline_name O O O O",
        "intent": "flight"
    },
    {
        "utterance": "flights from los angeles to pittsburgh",
        "slots": "O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from denver to atlanta on june sixteenth",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "flights from jfk or la guardia to cleveland",
        "slots": "O O B-fromloc.airport_code B-or B-fromloc.airport_name I-fromloc.airport_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights available from san francisco to pittsburgh for tuesday and also the price",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O O O O",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights between boston and washington",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to arrange for two friends to fly into los angeles next saturday evening one of the people is coming from kansas city and the other is coming from las vegas",
        "slots": "O O O O O O O O O O O B-toloc.city_name I-toloc.city_name B-arrive_date.date_relative B-arrive_date.day_name B-arrive_time.period_of_day O O O O O O O B-fromloc.city_name I-fromloc.city_name O O O O O O B-fromloc.city_name I-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "do you have any flights united airlines from dallas to san francisco",
        "slots": "O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "tell me about ground transportation between orlando international and orlando",
        "slots": "O O O O O O B-fromloc.airport_name I-fromloc.airport_name O B-toloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "tell me about flights from toronto to salt lake city leaving toronto between 530 and 7 pm",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name O B-fromloc.city_name O B-depart_time.start_time O B-depart_time.end_time I-depart_time.end_time",
        "intent": "flight"
    },
    {
        "utterance": "list flights from atlanta to boston leaving between 6 pm and 10 pm on august eighth",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.start_time I-depart_time.start_time O B-depart_time.end_time I-depart_time.end_time O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "would you tell me the cheapest one way fare from boston to oakland",
        "slots": "O O O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "please give me ground transportation information for denver",
        "slots": "O O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "morning flight from boston to philadelphia",
        "slots": "B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the coach class fares on flights from pittsburgh to atlanta",
        "slots": "O O O B-class_type I-class_type O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "flights from memphis to seattle",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show flights from new york city to las vegas",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which airlines fly from toronto to san diego and have a stopover in denver",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O O B-stoploc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "what flights go from boston to pittsburgh after 6 o'clock next tuesday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time B-depart_date.date_relative B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "round trip fares from denver to philadelphia less than 1000 dollars",
        "slots": "B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name B-cost_relative O B-fare_amount I-fare_amount",
        "intent": "airfare"
    },
    {
        "utterance": "does delta airlines fly from pittsburgh to atlanta",
        "slots": "O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the cheapest flight from pittsburgh to atlanta on wednesday which leaves before noon and serves breakfast",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O O B-depart_time.time_relative B-depart_time.time O O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like flights on american from philadelphia to dallas arriving before 1145 am",
        "slots": "O O O O O B-airline_name O B-fromloc.city_name O B-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me the nonstop flights from atlanta to oakland that leave in the afternoon and arrive between 430 pm and 630 pm",
        "slots": "O O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name O O O O B-arrive_time.period_of_day O O O B-arrive_time.start_time I-arrive_time.start_time O B-arrive_time.end_time I-arrive_time.end_time",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from san francisco to boston",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please give me ground transportation information between dallas fort worth airport and downtown dallas",
        "slots": "O O O O O O O B-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name O O B-toloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "display all flights from baltimore to boston on july twenty ninth",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "i want to travel from baltimore to washington on a monday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "flights on american from phoenix to chicago on wednesday",
        "slots": "O O B-airline_name O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from ontario to orlando",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "now i need another flight from las vegas to los angeles arriving also in the late afternoon what 's available for that",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-arrive_time.period_of_day I-arrive_time.period_of_day O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest one way fare from boston to washington",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what is ff",
        "slots": "O O B-airline_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "list the flights on sunday afternoon from oakland to dallas",
        "slots": "O O O O B-depart_date.day_name B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights out of love field",
        "slots": "O O O O O O B-fromloc.airport_name I-fromloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "list the delta airlines flights from boston to philadelphia",
        "slots": "O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all the flights from san francisco to boston for august thirty first 1991",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number B-depart_date.year",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight from washington to san francisco",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "on november twenty third what flights go from atlanta to denver on delta airlines",
        "slots": "O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from milwaukee to orlando",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights on us airlines from boston to oakland california which leave after 11 o'clock am",
        "slots": "O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name B-toloc.state_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "fares and flights from denver to philadelphia",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what 's the latest flight from houston to dallas",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights leave after 7 pm from philadelphia to boston",
        "slots": "O O O B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the cheapest one way flights from denver to atlanta",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the list of flights from philadelphia to denver that leave in the afternoon",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what ground transportation is available at the boston airport",
        "slots": "O O O O O O O B-airport_name I-airport_name",
        "intent": "ground_service"
    },
    {
        "utterance": "please give me all flights from long beach to memphis",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which airlines have daily flights from boston to dallas",
        "slots": "O O O B-flight_days O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "please show me the flights from denver to baltimore between 10 am and 2 pm",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.start_time I-depart_time.start_time O B-depart_time.end_time I-depart_time.end_time",
        "intent": "flight"
    },
    {
        "utterance": "which airline can fly me from atlanta to denver to san francisco",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "i need a flight from st. petersburg to charlotte which will get me into charlotte by 5 pm or as soon thereafter as possible",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time B-or O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "i want to fly philadelphia to dallas on july eighth",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from denver to philadelphia",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to know the time of the latest flight i can take from washington to san francisco where i can get a dinner meal",
        "slots": "O O O O O B-flight_time O O B-flight_mod O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O O B-meal_description I-meal_description",
        "intent": "flight_time"
    },
    {
        "utterance": "show me the flights from philadelphia to atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what does ea mean",
        "slots": "O O B-airline_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "is there a twa flight from las vegas to new york",
        "slots": "O O O B-airline_code O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list flights from houston to memphis june twenty ninth",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "i need to book a flight from newark to tampa on april fourth",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from baltimore to dallas",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the schedule of flights from boston to san francisco for august first",
        "slots": "O O O B-flight_time O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight_time"
    },
    {
        "utterance": "give me the first flight from boston to atlanta",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from kansas city to chicago next wednesday that reaches chicago around 7 in the evening",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-depart_date.date_relative B-depart_date.day_name O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time O O B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what are the afternoon flights leaving from dallas to san francisco on american airlines",
        "slots": "O O O B-depart_time.period_of_day O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "which airlines go from san francisco to washington by way of indianapolis",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O B-stoploc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "what is the least expensive business class flight between boston and san francisco",
        "slots": "O O O B-cost_relative I-cost_relative B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights leaving denver on continental on sunday after 934 pm",
        "slots": "O O O O B-fromloc.city_name O B-airline_name O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what ground transportation is available in denver",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i 'd like flight information from dallas fort worth to boston on tuesday",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me round trip fares from las vegas to houston nonstop",
        "slots": "O O B-round_trip I-round_trip O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-flight_stop",
        "intent": "airfare"
    },
    {
        "utterance": "what type of ground transportation is available between the airport and downtown san francisco",
        "slots": "O O O O O O O O O O O O B-toloc.city_name I-toloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i would like to fly united airlines from washington dc to denver colorado",
        "slots": "O O O O O B-airline_name I-airline_name O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name B-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "do i get a meal on the atlanta to bwi flight eastern 210",
        "slots": "O O O O B-meal O O B-fromloc.city_name O B-toloc.airport_code O B-airline_name B-flight_number",
        "intent": "meal"
    },
    {
        "utterance": "i need information for ground transportation denver colorado",
        "slots": "O O O O O O B-city_name B-state_name",
        "intent": "ground_service"
    },
    {
        "utterance": "ground transportation in denver",
        "slots": "O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i need an early flight from denver to san francisco please and i would like breakfast served on that",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O O B-meal_description O O O",
        "intent": "flight"
    },
    {
        "utterance": "tell me the last flight from atlanta to philadelphia",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list the sunday flights from dallas to houston on american airlines",
        "slots": "O O O B-depart_date.day_name O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "show business class fares from san francisco to denver on united airlines",
        "slots": "O B-class_type I-class_type O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "airfare"
    },
    {
        "utterance": "flight from washington dc to salt lake city",
        "slots": "O O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which delta flights fly from boston to philadelphia",
        "slots": "O B-airline_name O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from san francisco to washington dc",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-toloc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "show flights first class on american airlines between dallas and philadelphia",
        "slots": "O O B-class_type I-class_type O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights available from dallas to baltimore august third",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what are my options for a minneapolis back to indianapolis flight around noontime",
        "slots": "O O O O O O B-fromloc.city_name O O B-toloc.city_name O B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i want a flight originating in denver going to pittsburgh and atlanta in either order",
        "slots": "O O O O O O B-fromloc.city_name O O B-toloc.city_name O B-toloc.city_name O O O",
        "intent": "flight"
    },
    {
        "utterance": "sunday flights from new york city to las vegas",
        "slots": "B-depart_date.day_name O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from cleveland to indianapolis for wednesday the twelfth",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "names of airports",
        "slots": "O O O",
        "intent": "airport"
    },
    {
        "utterance": "what flight do you have from pittsburgh to san francisco on the morning of august twenty seventh",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_time.period_of_day O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me the itinerary of the connecting flight from boston to denver that departs boston at 10 am",
        "slots": "O O O O O O B-connect O O B-fromloc.city_name O B-toloc.city_name O O B-fromloc.city_name O B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "list the flights that leave from philadelphia to atlanta early thursday morning before 8 am",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.period_mod B-depart_date.day_name B-depart_time.period_of_day B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "on april sixth i would like to book an early morning flight from tampa to charlotte",
        "slots": "O B-depart_date.month_name B-depart_date.day_number O O O O O O B-depart_time.period_of_day B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is there a flight from pittsburgh to baltimore that arrives between 6 and 7 pm",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-arrive_time.start_time O B-arrive_time.end_time I-arrive_time.end_time",
        "intent": "flight"
    },
    {
        "utterance": "show me boston ground transportation",
        "slots": "O O B-city_name O O",
        "intent": "ground_service"
    },
    {
        "utterance": "i need a flight on thursday before 8 am from oakland to salt lake city",
        "slots": "O O O O O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show all flights from denver to san francisco",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "on continental flight 1765 from boston to san francisco what type of meal is served",
        "slots": "O B-airline_name O B-flight_number O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-meal O O",
        "intent": "flight"
    },
    {
        "utterance": "please find the earliest possible flight from boston to denver",
        "slots": "O O O B-flight_mod O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "anything from baltimore or washington with a stopover in denver going to san francisco",
        "slots": "O O B-fromloc.city_name B-or B-fromloc.city_name O O O O B-stoploc.city_name O O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me non first class flights from baltimore to dallas",
        "slots": "O O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me continental flights leaving chicago on saturday morning",
        "slots": "O O B-airline_name O O B-fromloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "do you have a united flight from boston to washington",
        "slots": "O O O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list daily flights from boston to oakland using continental airlines",
        "slots": "O B-flight_days O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to travel from boston to denver",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what nonstop flights between boston and washington arrive after 5 o'clock pm",
        "slots": "O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "could you find me the cheapest fare from boston to san francisco",
        "slots": "O O O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "information on flights from boston to washington",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest fare from washington to san francisco",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "san francisco to denver",
        "slots": "B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want a flight from denver to atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is restriction ap 80",
        "slots": "O O O B-restriction_code I-restriction_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "show me all meals on flights from atlanta to washington",
        "slots": "O O O B-meal O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "meal"
    },
    {
        "utterance": "i want the flights from toronto to san diego that stop in st. louis",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-stoploc.city_name I-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights denver to washington on wednesday",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the smallest plane that flies from pittsburgh to baltimore on eight sixteen",
        "slots": "O O O B-mod O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.time O",
        "intent": "aircraft"
    },
    {
        "utterance": "price of flight from nashville to cleveland",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what does fare code qx mean",
        "slots": "O O O O B-fare_basis_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "show me all the twa flights from indianapolis to houston that arrive around 11 am",
        "slots": "O O O O B-airline_code O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "all right now i need a flight from seattle to san diego",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me us air fares for next sunday from miami to cleveland",
        "slots": "O O B-airline_name I-airline_name O O B-depart_date.date_relative B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me the airlines for flights to or from love field",
        "slots": "O O O O O O O O O B-fromloc.airport_name I-fromloc.airport_name",
        "intent": "airline"
    },
    {
        "utterance": "show me all flights from pittsburgh to baltimore tomorrow which serve a meal",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.today_relative O O O B-meal",
        "intent": "flight"
    },
    {
        "utterance": "show me the round trip flights between phoenix and salt lake city",
        "slots": "O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a listing of flights from new york city to montreal canada departing thursday in the morning",
        "slots": "O O O O O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-toloc.country_name O B-depart_date.day_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what is the first flight from atlanta to baltimore that serves lunch",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "what ground transportation is there from the airport in atlanta to downtown",
        "slots": "O O O O O O O O O B-fromloc.city_name O O",
        "intent": "ground_service"
    },
    {
        "utterance": "first i 'd like to fly from philadelphia to dallas and fly from dallas to san francisco",
        "slots": "B-class_type O O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all american airlines flights from phoenix to milwaukee on wednesday",
        "slots": "O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from tacoma to san jose on wednesday the nineteenth",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name O B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show first flight from boston to philadelphia",
        "slots": "O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from baltimore to boston",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show all flights from miami to jfk",
        "slots": "O O O O B-fromloc.city_name O B-toloc.airport_code",
        "intent": "flight"
    },
    {
        "utterance": "i would like a nonstop flight from philadelphia to pittsburgh",
        "slots": "O O O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the flights from san francisco to philadelphia on american airlines",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "please show me flights from dallas to denver",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "does midwest express have any flights from montreal to detroit",
        "slots": "O B-airline_name O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me the flights with the fares on december twenty seventh from indianapolis to orlando",
        "slots": "O O O O O O O O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "from kansas city to salt lake city on delta arrive around 8 pm tomorrow",
        "slots": "O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name O B-airline_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time B-arrive_date.today_relative",
        "intent": "flight"
    },
    {
        "utterance": "airline and flight number from columbus to minneapolis",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline+flight_no"
    },
    {
        "utterance": "what is the seating capacity of the various airplanes that united airlines uses",
        "slots": "O O O O O O O O O O B-airline_name I-airline_name O",
        "intent": "capacity"
    },
    {
        "utterance": "list all nonstop flights on wednesday from baltimore to newark before noon",
        "slots": "O O B-flight_stop O O B-arrive_date.day_name O B-fromloc.city_name O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like an early flight tomorrow from columbus to nashville",
        "slots": "O O O O B-flight_mod O B-depart_date.today_relative O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what does nw stand for",
        "slots": "O O B-airline_code O O",
        "intent": "abbreviation"
    },
    {
        "utterance": "list all flights on united from san francisco to boston",
        "slots": "O O O O B-airline_name O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the flight number for the continental flight which leaves denver at 1220 pm and goes to san francisco",
        "slots": "O O O O O O O B-airline_name O O O B-fromloc.city_name O B-depart_time.time I-depart_time.time O O O B-toloc.city_name I-toloc.city_name",
        "intent": "flight_no"
    },
    {
        "utterance": "show me the flights from denver to san diego leaving after 5 pm",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "flights on twa from columbus to st. louis",
        "slots": "O O B-airline_code O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what airlines are there",
        "slots": "O O O O",
        "intent": "airline"
    },
    {
        "utterance": "show me the flights from boston to oakland",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all the flights from charlotte to atlanta that return around 7 pm",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "please give me a list of flights leaving boston going to pittsburgh",
        "slots": "O O O O O O O O B-fromloc.city_name O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the round trip flights from st. paul to san jose",
        "slots": "O O B-round_trip I-round_trip O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me flights that arrive in baltimore from denver",
        "slots": "O O O O O O B-toloc.city_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the coach fares for flights from charlotte to newark tuesday afternoon",
        "slots": "O O O B-class_type O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "airfare"
    },
    {
        "utterance": "ground transportation philadelphia",
        "slots": "O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what flights from las vegas to san diego",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from newark new jersey to cleveland ohio",
        "slots": "O O B-fromloc.city_name B-fromloc.state_name I-fromloc.state_name O B-toloc.city_name B-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from san francisco to denver on weekdays",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-flight_mod",
        "intent": "flight"
    },
    {
        "utterance": "list united flights from denver to san francisco on wednesdays",
        "slots": "O B-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what does us stand for",
        "slots": "O O B-airline_code O O",
        "intent": "abbreviation"
    },
    {
        "utterance": "i need a flight from denver to washington dc on wednesday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all united flights from denver to san francisco for september first 1991",
        "slots": "O O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.month_name B-depart_date.day_number B-depart_date.year",
        "intent": "flight"
    },
    {
        "utterance": "show me the earliest flight from newark to seattle",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "american flight 4400 from cincinnati to houston",
        "slots": "B-airline_name O B-flight_number O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "does flight dl 1083 from philadelphia to denver fly on saturdays",
        "slots": "O O B-airline_code B-flight_number O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like information on a flight from denver to san francisco on united air",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name O",
        "intent": "flight"
    },
    {
        "utterance": "please list the flights from baltimore to san francisco on fridays",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me continental flights from chicago to seattle on saturday morning",
        "slots": "O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what kind of ground transportation is available in denver",
        "slots": "O O O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what nonstop flights between boston and washington arrive after 4 o'clock pm",
        "slots": "O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to book the cheapest one way flight from denver to pittsburgh",
        "slots": "O O O O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from miami to san diego with one stop in denver",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-flight_stop I-flight_stop O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "are there any continental flights between dallas and boston",
        "slots": "O O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from atlanta to washington dc on thursday evening",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there arriving in chicago after 9 pm on continental",
        "slots": "O O O O O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time O B-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there from los angeles to pittsburgh",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like flights between boston and atlanta on july eleven departing at one in the afternoon",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number O O B-depart_time.time O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "explain restriction ap80",
        "slots": "O O B-restriction_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "philadelphia to boston monday",
        "slots": "B-fromloc.city_name O B-toloc.city_name B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from baltimore to dallas",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "in pittsburgh i 'd like to rent a car",
        "slots": "O B-city_name O O O O O O B-transport_type",
        "intent": "ground_service"
    },
    {
        "utterance": "what limousine service is in boston",
        "slots": "O B-transport_type O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "flights from milwaukee to phoenix on saturday or sunday american airlines",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-or B-depart_date.day_name B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "i want a flight from montreal quebec to san diego california that leaves sunday",
        "slots": "O O O O O B-fromloc.city_name B-fromloc.state_name O B-toloc.city_name I-toloc.city_name B-toloc.state_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "please list all the flights from boston to denver which serve meals",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-meal",
        "intent": "flight"
    },
    {
        "utterance": "what 's the ground transportation like at pittsburgh",
        "slots": "O O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show me all flights from san francisco to la guardia nonstop",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.airport_name I-toloc.airport_name B-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "in the month of december are there any flights from atlanta to denver that stop in boston",
        "slots": "O O O O B-depart_date.month_name O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "wednesday morning flights between baltimore and newark new jersey",
        "slots": "B-depart_date.day_name B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_name I-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the number of first class flights on american airlines",
        "slots": "O O O O O B-class_type I-class_type O O B-airline_name I-airline_name",
        "intent": "flight_no"
    },
    {
        "utterance": "what are the flights from boston to baltimore",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to arrange a flight from pittsburgh to atlanta",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from montreal to philly",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the flights from houston to st. paul",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list the morning flights from st. louis to st. paul",
        "slots": "O O O B-depart_time.period_of_day O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight on air canada from toronto to san diego with a layover in dc",
        "slots": "O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from atlanta to baltimore",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like an afternoon flight from atlanta to san francisco with a stopover in denver arriving i 'd say about mealtime",
        "slots": "O O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name O O O O B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what are the morning flights in the next two days from nashville to tacoma",
        "slots": "O O O B-depart_time.period_of_day O O O B-depart_date.date_relative O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "could you tell me what the earliest flight that goes between atlanta and denver is which serves a meal",
        "slots": "O O O O O O B-flight_mod O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-meal",
        "intent": "flight"
    },
    {
        "utterance": "give me the flights from pittsburgh to los angeles on thursday evening",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "list the flights that arrive and depart from general mitchell international airport",
        "slots": "O O O O O O O O B-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the latest us air flight leaving philadelphia and returning to boston",
        "slots": "O O O B-flight_mod B-airline_name I-airline_name O O B-fromloc.city_name O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like information on flights from philadelphia to oakland california on friday afternoon",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i would like to find out what flights there are on friday june eleventh from st. petersburg to milwaukee and then from milwaukee to tacoma thank you",
        "slots": "O O O O O O O O O O O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O B-fromloc.city_name O B-toloc.city_name O O",
        "intent": "flight"
    },
    {
        "utterance": "please list pm flights from boston pittsburgh",
        "slots": "O O B-depart_time.period_of_day O O B-fromloc.city_name B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how about april twenty seventh denver to washington",
        "slots": "O O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "can you tell me which flight from dallas to baltimore has the least expensive fare",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-cost_relative I-cost_relative O",
        "intent": "flight"
    },
    {
        "utterance": "show me all the eastern airlines flights leaving pittsburgh between 12 and 4 in the afternoon",
        "slots": "O O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-depart_time.start_time O B-depart_time.end_time O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "please list all flights from san francisco to pittsburgh on sunday",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from kansas city to cleveland on wednesday arriving before 5 pm",
        "slots": "O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what is the fare from san francisco to dallas fort worth on delta flight 852",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name O B-airline_name O B-flight_number",
        "intent": "airfare"
    },
    {
        "utterance": "when is the earliest flight from boston to denver",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "round trip fares from denver to philadelphia under 1000 dollars",
        "slots": "B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name B-cost_relative B-fare_amount I-fare_amount",
        "intent": "airfare"
    },
    {
        "utterance": "are there any flights from pittsburgh to boston that leave between noon and 5 o'clock",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-depart_time.start_time O B-depart_time.end_time I-depart_time.end_time",
        "intent": "flight"
    },
    {
        "utterance": "now i 'd like flights from philadelphia to pittsburgh leaving between 430 and 530 pm",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.start_time O B-depart_time.end_time I-depart_time.end_time",
        "intent": "flight"
    },
    {
        "utterance": "all flights from miami to new york",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the latest flight out of denver that arrives in pittsburgh next monday",
        "slots": "O O O B-flight_mod O O O B-fromloc.city_name O O O B-toloc.city_name B-arrive_date.date_relative B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what flight from boston to atlanta arrives earliest in atlanta",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-flight_mod O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights go from chicago to seattle on continental airlines on saturday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from philadelphia to denver",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "okay on the following wednesday i 'd like to go from memphis to cincinnati as early as possible",
        "slots": "O O O B-depart_date.date_relative B-depart_date.day_name O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O",
        "intent": "flight"
    },
    {
        "utterance": "i want an early morning flight from boston to philadelphia",
        "slots": "O O O B-depart_time.period_of_day B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what type of aircraft leaves from boston to washington dc at 9 am",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O B-depart_time.time I-depart_time.time",
        "intent": "aircraft"
    },
    {
        "utterance": "what is the last flight from baltimore to boston",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me flights that arrive in baltimore from atlanta",
        "slots": "O O O O O O B-toloc.city_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights on september twenty sixth please",
        "slots": "O O O O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from denver to westchester county",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from pittsburgh to baltimore between 10 am and 2 pm",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.start_time I-depart_time.start_time O B-depart_time.end_time I-depart_time.end_time",
        "intent": "flight"
    },
    {
        "utterance": "evening flights from philadelphia to oakland",
        "slots": "B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to fly from boston to san francisco via dallas fort worth on american airlines",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-stoploc.city_name I-stoploc.city_name I-stoploc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "how do i get from the airport to downtown in tacoma",
        "slots": "O O O O O O O O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "from toronto to atlanta in the afternoon",
        "slots": "O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "list all flights from new york to las vegas that fly nonstop on sunday and list flights from memphis to las vegas that fly nonstop on sunday",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-flight_stop O B-depart_date.day_name O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-flight_stop O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the dinner flights from indianapolis to san diego on wednesday may twelfth",
        "slots": "O O O B-meal_description O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what first class flights are available on july twenty fifth 1991 from denver to baltimore",
        "slots": "O B-class_type I-class_type O O O O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number B-depart_date.year O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to fly us air from orlando to cleveland in the late evening what do you have available",
        "slots": "O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_mod B-depart_time.period_of_day O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "what is ewr",
        "slots": "O O B-airport_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "show fares and flights from denver to oakland",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "does american airlines have a flight from pittsburgh to atlanta",
        "slots": "O B-airline_name I-airline_name O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please give me round trip fares from pittsburgh to philadelphia",
        "slots": "O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me the ground transportation at denver",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "delta flights to san francisco please",
        "slots": "B-airline_name O O B-toloc.city_name I-toloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "show me morning flights from atlanta to philadelphia",
        "slots": "O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights on twa to atlanta in the morning",
        "slots": "O O O O O B-airline_code O B-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "list round trip flights from orlando to kansas city",
        "slots": "O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is there ground transportation from the pittsburgh airport to downtown pittsburgh",
        "slots": "O O O O O O B-fromloc.airport_name I-fromloc.airport_name O O B-toloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show me flights from pittsburgh to atlanta on monday afternoon",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what flights do you have leaving boston going to san francisco",
        "slots": "O O O O O O B-fromloc.city_name O O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like information on continental airlines flights from washington to philadelphia",
        "slots": "O O O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "tell me about flights leaving from atlanta and going to charlotte north carolina next monday i need to know about flights that arrive in charlotte between 415 and 530 pm",
        "slots": "O O O O O O B-fromloc.city_name O O O B-toloc.city_name B-toloc.state_name I-toloc.state_name B-depart_date.date_relative B-depart_date.day_name O O O O O O O O O B-toloc.city_name O B-arrive_time.start_time O B-arrive_time.end_time I-arrive_time.end_time",
        "intent": "flight"
    },
    {
        "utterance": "show the flights from pittsburgh to san francisco again on monday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i need to reverse the flight from pittsburgh to denver please",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "what flights between dfw and oakland arrive in oakland between 1133 am and 43 pm",
        "slots": "O O O B-fromloc.airport_code O B-toloc.city_name O O B-toloc.city_name O B-arrive_time.start_time I-arrive_time.start_time O B-arrive_time.end_time I-arrive_time.end_time",
        "intent": "flight"
    },
    {
        "utterance": "show me ground transportation in westchester county",
        "slots": "O O O O O B-city_name I-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show me ground transportation in san francisco",
        "slots": "O O O O O B-city_name I-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what is the cheapest flight from pittsburgh to atlanta leaving on october fifth",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest round trip coach flight between dallas and baltimore leaving august tenth",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip B-class_type O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what is the most expensive flight from boston to dallas round trip",
        "slots": "O O O B-cost_relative I-cost_relative O O B-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from pittsburgh to new york leaving at 5 pm",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from dallas to atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "all flights from charlotte to anywhere on us air around 1 pm",
        "slots": "O O O B-fromloc.city_name O O O B-airline_name I-airline_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "list least expensive flight from dallas to baltimore",
        "slots": "O B-cost_relative I-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want a flight from toronto to san diego that stops in st. louis are there flights",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-stoploc.city_name I-stoploc.city_name O O O",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from denver to burbank",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "san francisco to pittsburgh friday",
        "slots": "B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available friday afternoon from atlanta to dallas",
        "slots": "O O O O B-depart_date.day_name B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the latest flight from boston to denver that serves a meal",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O O O B-meal",
        "intent": "flight"
    },
    {
        "utterance": "show me all the flights between philadelphia and denver",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the lowest round trip fare from dallas to any city",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O O O",
        "intent": "airfare"
    },
    {
        "utterance": "what are the cheapest one way flights from denver to atlanta",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what ground transportation is available from the pittsburgh airport",
        "slots": "O O O O O O O B-fromloc.airport_name I-fromloc.airport_name",
        "intent": "ground_service"
    },
    {
        "utterance": "list all flights leaving on thursday morning from new york city to montreal",
        "slots": "O O O O O B-depart_date.day_name B-depart_time.period_of_day O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want a flight from los angeles to pittsburgh that arrives before 3 pm on tuesday",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me return flights from cincinnati to salt lake city nonstop",
        "slots": "O O B-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name B-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from baltimore to philadelphia",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is there a late afternoon flight leaving washington for denver",
        "slots": "O O O B-depart_time.period_of_day I-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to travel from washington dc to pittsburgh on august twentieth",
        "slots": "O O O O O O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "list all flights going from boston to atlanta before 7 o'clock am on thursday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time I-depart_time.time O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the cheapest flight from atlanta to baltimore",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from baltimore to boston",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from dallas to boston",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from atlanta august second",
        "slots": "O O B-fromloc.city_name B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "list the flights from indianapolis to houston",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "first class from detroit to st. petersburg",
        "slots": "B-class_type I-class_type O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list types of planes that fly between pittsburgh and baltimore",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "aircraft"
    },
    {
        "utterance": "i would like to book a flight on june first from los angeles to pittsburgh in the late afternoon",
        "slots": "O O O O O O O O B-depart_date.month_name B-depart_date.day_number O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day I-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "fly from dallas to baltimore",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight from toronto to san diego that stops in kansas city",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-stoploc.city_name I-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "first class round trip airfare from indianapolis to memphis",
        "slots": "B-class_type I-class_type B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "dallas to baltimore",
        "slots": "B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me the cheapest round trip flight from dallas to baltimore",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is fare code f",
        "slots": "O O O O B-fare_basis_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "what flights are there from minneapolis to newark on continental",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from washington dc to toronto",
        "slots": "O O O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from indianapolis to seattle",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the price of business class from boston to san francisco on twa",
        "slots": "O O O O O B-class_type I-class_type O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_code",
        "intent": "airfare"
    },
    {
        "utterance": "i want to arrive in detroit around 6 pm and i 'm leaving from chicago",
        "slots": "O O O O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time O O O O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from atlanta to washington",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights leave from phoenix",
        "slots": "O O O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the fare going from baltimore to atlanta one way on november seventh",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip O B-depart_date.month_name B-depart_date.day_number",
        "intent": "airfare"
    },
    {
        "utterance": "i want the cheapest flight from pittsburgh to atlanta",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the ground transportation available in boston",
        "slots": "O O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what are the flights from boston to baltimore leaving tomorrow",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.today_relative",
        "intent": "flight"
    },
    {
        "utterance": "where does delta fly to that american doesn 't",
        "slots": "O O B-airline_name O O O B-airline_name B-mod I-mod",
        "intent": "flight"
    },
    {
        "utterance": "what flights are provided by american airlines",
        "slots": "O O O O O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "list nonstop flights from baltimore washington to oakland that arrive between 445 and 515 pm",
        "slots": "O B-flight_stop O O B-fromloc.city_name B-fromloc.city_name O B-toloc.city_name O O O B-arrive_time.start_time O B-arrive_time.end_time I-arrive_time.end_time",
        "intent": "flight"
    },
    {
        "utterance": "flight from dallas to milwaukee",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to fly from denver to pittsburgh to atlanta could you find me the cheapest way to do this",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-toloc.city_name O O O O O B-cost_relative O O O O",
        "intent": "flight"
    },
    {
        "utterance": "what is the fare for a one way flight from boston to atlanta",
        "slots": "O O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "flight from boston to baltimore",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "does continental fly from boston to san francisco",
        "slots": "O B-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight from denver to pittsburgh",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from montreal and phoenix to las vegas arriving at the same time",
        "slots": "O O B-fromloc.city_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "what do you have tomorrow after 5 o'clock from atlanta to san francisco",
        "slots": "O O O O B-depart_date.today_relative B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are from memphis to las vegas",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the cheapest round trip flights from denver to atlanta",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the last flight to atlanta from baltimore",
        "slots": "O O O B-flight_mod O O B-toloc.city_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from salt lake city to milwaukee",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the cheapest first class airfare from pittsburgh to san francisco",
        "slots": "O O O B-cost_relative B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "okay i 'd like a nonstop flight from houston to memphis that arrives in memphis in the early afternoon on tuesday june first",
        "slots": "O O O O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name O O O B-toloc.city_name O O B-depart_time.period_of_day B-arrive_time.period_of_day O B-arrive_date.day_name B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "give me flights from denver to baltimore",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need to find a flight from philadelphia to san francisco that has a stopover in dallas",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "can you list all flights from washington to toronto",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from baltimore to philadelphia",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'm trying to find a flight from columbus to phoenix through cincinnati",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me a list of airports in baltimore",
        "slots": "O O O O O O O B-city_name",
        "intent": "airport"
    },
    {
        "utterance": "i would like to book a flight going from tampa to seattle on may twenty sixth i would like to stop in milwaukee on the way",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O O O O O O B-stoploc.city_name O O O",
        "intent": "flight"
    },
    {
        "utterance": "nonstop flights from new york city to las vegas on sunday",
        "slots": "B-flight_stop O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "could you please tell me the cheapest fare from atlanta to boston",
        "slots": "O O O O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "are there any nonstop flights from philadelphia to denver that arrive before 5 pm",
        "slots": "O O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "please list all flights on united airlines and northwest airlines that go into denver and all flights on northwest airlines and united airlines that fly out of denver",
        "slots": "O O O O O B-airline_name I-airline_name O B-airline_name I-airline_name O O O B-toloc.city_name O O O O B-airline_name I-airline_name O B-airline_name I-airline_name O O O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "tuesday morning flights between charlotte and baltimore",
        "slots": "B-depart_date.day_name B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to fly from dallas to denver on the morning of august twenty seventh leaving at 650",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O O B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i want a cheap from denver to atlanta",
        "slots": "O O O B-flight_mod O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how do i get from bwi to washington",
        "slots": "O O O O O B-fromloc.airport_code O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from san francisco to pittsburgh and then pittsburgh to new york and new york to san francisco",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from atlanta to denver on monday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights arriving to denver from oakland",
        "slots": "O O O O O O B-toloc.city_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from san jose to st. paul",
        "slots": "O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the airlines",
        "slots": "O O O O",
        "intent": "airline"
    },
    {
        "utterance": "find the flights leaving dallas and going to san francisco that leave after 5 pm",
        "slots": "O O O O B-fromloc.city_name O O O B-toloc.city_name I-toloc.city_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "give me the continental flights from seattle",
        "slots": "O O O B-airline_name O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which airlines fly from boston to washington",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "what flights are there tomorrow from tacoma to san jose",
        "slots": "O O O O B-depart_date.today_relative O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how long does the ground transportation take from the salt lake city airport",
        "slots": "O O O O O O O O O B-airport_name I-airport_name I-airport_name I-airport_name",
        "intent": "ground_service"
    },
    {
        "utterance": "how much is a round trip fare from memphis to seattle",
        "slots": "O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "earliest flight from atlanta to philadelphia",
        "slots": "B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from san francisco to boston",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "american airlines from phoenix to denver",
        "slots": "B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like a nonstop flight from st. petersburg to charlotte leaving in the afternoon",
        "slots": "O O O O B-flight_stop O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "can you list flights departing from las vegas and arriving in san diego",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O O O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from san diego to san francisco on southwest airlines",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from baltimore to oakland",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "all do you have a flight from washington to boston that stops in philadelphia",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from philadelphia to dallas",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "phoenix to newark wednesday",
        "slots": "B-fromloc.city_name O B-toloc.city_name B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me fares leaving on tuesdays from denver to dallas",
        "slots": "O O O O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "how much does it cost to fly eastern airlines from atlanta to boston",
        "slots": "O O O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me all flights with fares from pittsburgh to san francisco",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "an early flight on wednesday morning from baltimore to newark",
        "slots": "O B-flight_mod O O B-depart_date.day_name B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which airlines provide direct flights between washington and denver",
        "slots": "O O O B-connect O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "please list the morning flights from philadelphia to toronto",
        "slots": "O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me the one way flights from pittsburgh to boston",
        "slots": "O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "does united airlines have flights between boston and denver",
        "slots": "O B-airline_name I-airline_name O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is airline dl",
        "slots": "O O O B-airline_code",
        "intent": "airline"
    },
    {
        "utterance": "what flights from orlando to tacoma on saturday",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "all flights to baltimore after 6 pm",
        "slots": "O O O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "does american airlines fly from boston to san francisco",
        "slots": "O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what morning flights do you have between oakland and denver",
        "slots": "O B-depart_time.period_of_day O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to know what type of aircraft will be used on the morning of july seventh from atlanta to boston",
        "slots": "O O O O O O O O O O O O O O B-depart_time.period_of_day O B-depart_date.month_name B-depart_date.day_number O B-fromloc.city_name O B-toloc.city_name",
        "intent": "aircraft"
    },
    {
        "utterance": "what flights go to san francisco from boston",
        "slots": "O O O O B-toloc.city_name I-toloc.city_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all the flights that go from baltimore to seattle",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from love field to any other airport",
        "slots": "O O O O O B-fromloc.airport_name I-fromloc.airport_name O O O O",
        "intent": "flight"
    },
    {
        "utterance": "what about the eastern airlines flights arriving in pittsburgh between 12 and 4 in the afternoon",
        "slots": "O O O B-airline_name I-airline_name O O O B-toloc.city_name O B-arrive_time.start_time O B-arrive_time.end_time O O B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i want the list of daily flights from milwaukee to st. louis",
        "slots": "O O O O O B-flight_days O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the flights from philadelphia to dallas on american airlines",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all the flights between dallas fort worth and either san francisco or oakland that depart between 5 and 7 pm",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O O B-toloc.city_name I-toloc.city_name B-or B-toloc.city_name O O O B-depart_time.start_time O B-depart_time.end_time I-depart_time.end_time",
        "intent": "flight"
    },
    {
        "utterance": "explain the fare codes",
        "slots": "O O O O",
        "intent": "abbreviation"
    },
    {
        "utterance": "us air 269 leaving boston at 428 what is the arrival time in baltimore",
        "slots": "B-airline_name I-airline_name B-flight_number O B-fromloc.city_name O B-depart_time.time O O O B-flight_time I-flight_time O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please give me the flight times i would like to fly from boston to baltimore in the morning before 8",
        "slots": "O O O O B-flight_time I-flight_time O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day B-depart_time.time_relative B-depart_time.time",
        "intent": "flight_time"
    },
    {
        "utterance": "i want to travel from washington dc to philadelphia on tuesday morning",
        "slots": "O O O O O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i 'm looking for a flight that goes from san jose to houston on may thirtieth and that leaves after noon",
        "slots": "O O O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number O O O B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from denver to atlanta",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there tuesday morning from dallas to atlanta",
        "slots": "O O O O B-depart_date.day_name B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me the flights for american airline from philadelphia to dallas",
        "slots": "O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to go from san francisco to denver",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are my choices of flights from las vegas to new york",
        "slots": "O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights going from boston to atlanta before 5 o'clock am on thursday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time I-depart_time.time O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "list daily flights from oakland to boston using twa",
        "slots": "O B-flight_days O O B-fromloc.city_name O B-toloc.city_name O B-airline_code",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from boston to denver on wednesday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from st. petersburg to miami for thursday",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights from long beach to columbus on sunday",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to find the cheapest flight from boston to san francisco",
        "slots": "O O O O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please show me the round trip flights from st. petersburg to toronto",
        "slots": "O O O O B-round_trip I-round_trip O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me flights from pittsburgh to baltimore",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to know if i fly on american flight number 813 from boston to oakland if i will stop enroute at another city",
        "slots": "O O O O O O O O O B-airline_name O B-flight_number O O B-fromloc.city_name O B-toloc.city_name O O O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from montreal",
        "slots": "O O O O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is there an airline that has a flight from philadelphia to san francisco with a stop in dallas",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "what flights do you have from newark new jersey to ontario california that connect in phoenix",
        "slots": "O O O O O O B-fromloc.city_name B-fromloc.state_name I-fromloc.state_name O B-toloc.city_name B-toloc.state_name O B-connect O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the earliest flight from phoenix to salt lake city",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from boston to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please show me united nonstop flights between boston and san francisco departing around 5 in the evening",
        "slots": "O O O B-airline_name B-flight_stop O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time O O B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what is mia",
        "slots": "O O B-airport_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "show me the list of flights between philadelphia and denver that leave in the afternoon",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights before 8 am on august second from boston to denver on delta",
        "slots": "O O O O B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-depart_date.month_name B-depart_date.day_number O B-fromloc.city_name O B-toloc.city_name O B-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "looking for a flight from cleveland to dallas",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "can you list all round trip flights from orlando to kansas city and then to minneapolis",
        "slots": "O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list possible round trip daily flights between boston and oakland",
        "slots": "O O B-round_trip I-round_trip B-flight_days O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "between boston and denver i 'd like a flight that takes the least amount of stops to get to boston",
        "slots": "O B-fromloc.city_name O B-toloc.city_name O O O O O O O O B-mod O O O O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the ground transportation in denver",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "now i need flight information leaving atlanta and arriving in baltimore in the afternoon",
        "slots": "O O O O O O B-fromloc.city_name O O O B-toloc.city_name O O B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available from pittsburgh to oakland airport",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.airport_name I-toloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "is there ground transportation in boston from the airport",
        "slots": "O O O O O B-city_name O O O",
        "intent": "ground_service"
    },
    {
        "utterance": "please list all flights on united airlines out of denver before noon",
        "slots": "O O O O O B-airline_name I-airline_name O O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "does midwest express serve charlotte",
        "slots": "O B-airline_name O O B-city_name",
        "intent": "flight"
    },
    {
        "utterance": "all flights from pittsburgh to philadelphia that arrive at 6 o'clock next tuesday",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O O O B-arrive_time.time I-arrive_time.time B-arrive_date.date_relative B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "please show me all airlines with sunday flights from philadelphia to denver",
        "slots": "O O O O O O B-depart_date.day_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "please show me all round trip flights from new york to miami",
        "slots": "O O O O B-round_trip I-round_trip O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like a cheap flight from dallas to baltimore on january first",
        "slots": "O O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to fly late tomorrow from minneapolis to long beach",
        "slots": "O O O O O B-depart_time.period_mod B-depart_date.today_relative O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from philadelphia to san francisco on wednesdays",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the evening flights from atlanta to boston",
        "slots": "O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to travel from kansas city to st. paul and be there by dinnertime",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-depart_time.time_relative B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available friday from san francisco to boston",
        "slots": "O O O O B-depart_date.day_name O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show all connecting flights from pittsburgh to oakland",
        "slots": "O O B-connect O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show flights from denver to oakland arriving between 12 and 1 o'clock",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_time.start_time O B-arrive_time.end_time I-arrive_time.end_time",
        "intent": "flight"
    },
    {
        "utterance": "do you have a flight from charlotte to atlanta on june first",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "i like to see the information for flights from pittsburgh to san francisco leaving pittsburgh after 12 pm",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like a flight from baltimore to boston as early in the morning as i can",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.period_mod O O B-depart_time.period_of_day O O O",
        "intent": "flight"
    },
    {
        "utterance": "how many flights does eastern airlines have from boston to atlanta",
        "slots": "O O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "quantity"
    },
    {
        "utterance": "what is the cost of a round trip ticket first class between oak and atl",
        "slots": "O O O O O O B-round_trip I-round_trip O B-class_type I-class_type O B-fromloc.airport_code O B-toloc.airport_code",
        "intent": "airfare"
    },
    {
        "utterance": "in the next two days i want to fly from nashville to san jose or to tacoma",
        "slots": "O O B-depart_date.date_relative O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-or O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights on continental leaving denver on monday",
        "slots": "O O O O B-airline_name O B-fromloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to find a flight from tampa to montreal that makes a stop in new york",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O O B-stoploc.city_name I-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from baltimore to seattle",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show the flights from denver to san francisco",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like information on all the flights from san francisco to pittsburgh on tuesday",
        "slots": "O O O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from kansas city to atlanta arriving before 10 am on monday",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "explain meal codes sd d",
        "slots": "O B-meal O B-meal_code I-meal_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "what is the first flight from boston to stapleton airport for tomorrow",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.airport_name I-toloc.airport_name O B-depart_date.today_relative",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from dallas to baltimore",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "all one way flights between boston and philadelphia",
        "slots": "O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the first class flights from baltimore to denver",
        "slots": "O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me morning flights from toronto",
        "slots": "O O B-depart_time.period_of_day O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "do you have any flights from pittsburgh to boston on wednesday of next week in the morning",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-depart_date.date_relative O O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from phoenix to milwaukee on wednesday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights departing from general mitchell",
        "slots": "O O O O O B-fromloc.airport_name I-fromloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "define airline ua",
        "slots": "O O B-airline_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "i 'd like the earliest flight information from boston to san francisco with a meal",
        "slots": "O O O O B-flight_mod O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-meal",
        "intent": "flight"
    },
    {
        "utterance": "what delta flights fly from washington to dallas in the morning",
        "slots": "O B-airline_name O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "is there an atlanta flight to denver connecting",
        "slots": "O O O B-fromloc.city_name O O B-toloc.city_name B-connect",
        "intent": "flight"
    },
    {
        "utterance": "show me some information on making a reservation from philadelphia to denver on sunday",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from chicago to denver in the morning",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i would like a schedule of flights from denver to san francisco on tuesday",
        "slots": "O O O O B-flight_time O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight_time"
    },
    {
        "utterance": "how many seats in a 100",
        "slots": "O O O O O B-aircraft_code",
        "intent": "capacity"
    },
    {
        "utterance": "show me all flights from pittsburgh which leave tomorrow and arrive in boston",
        "slots": "O O O O O B-fromloc.city_name O O B-depart_date.today_relative O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me the earliest flight tomorrow on northwest airlines from st. petersburg to milwaukee",
        "slots": "O O O B-flight_mod O B-depart_date.today_relative O B-airline_name I-airline_name O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like a flight tomorrow evening from nashville to houston that includes dinner for tomorrow",
        "slots": "O O O O O B-depart_date.today_relative B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name O O B-meal_description O B-depart_date.today_relative",
        "intent": "flight"
    },
    {
        "utterance": "show me all twa flights please",
        "slots": "O O O B-airline_code O O",
        "intent": "flight"
    },
    {
        "utterance": "do you have an american airlines flight from denver to san francisco in the early morning",
        "slots": "O O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_time.period_of_day B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "how long is a trip from philadelphia airport to downtown philadelphia",
        "slots": "O O O O O O B-fromloc.airport_name I-fromloc.airport_name O O B-toloc.city_name",
        "intent": "distance"
    },
    {
        "utterance": "hi i need to go from newark to nashville on american airlines leaving around 630 pm",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "flights from montreal and phoenix to las vegas",
        "slots": "O O B-fromloc.city_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to find a nonstop flight from boston to atlanta that leaves sometime in the afternoon and arrives in atlanta before evening",
        "slots": "O O O O O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name O O O O O B-arrive_time.period_of_day O O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "us 201",
        "slots": "B-airline_code B-flight_number",
        "intent": "flight"
    },
    {
        "utterance": "i would like the time your earliest flight from washington to philadelphia",
        "slots": "O O O O B-flight_time O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight_time"
    },
    {
        "utterance": "flight information from denver to san francisco",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the cheapest flight from pittsburgh to san francisco on friday",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights arriving at love field from other airports",
        "slots": "O O O O O O B-toloc.airport_name I-toloc.airport_name O O O",
        "intent": "flight"
    },
    {
        "utterance": "list all flights from denver to philadelphia",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "could you find me a flight from boston to san francisco that stops in denver",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what ground transportation is available in san francisco",
        "slots": "O O O O O O B-city_name I-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "can you help me with ground transportation information i need to get from the airport in philadelphia to downtown philadelphia",
        "slots": "O O O O O O O O O O O O O O O O B-fromloc.city_name O O B-toloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "how long does it take to get from atlanta airport into the city of atlanta",
        "slots": "O O O O O O O O B-fromloc.airport_name I-fromloc.airport_name O O O O B-toloc.city_name",
        "intent": "distance"
    },
    {
        "utterance": "what are all flights to denver from philadelphia on sunday",
        "slots": "O O O O O B-toloc.city_name O B-fromloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from san francisco to boston",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from san francisco to dallas please",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "what is the last flight from washington to boston",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the cheapest round trip fare from baltimore to dallas",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what airlines fly from toronto to san diego",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "please repeat the flight departures for monday august nineteenth from denver to pittsburgh",
        "slots": "O O O O O O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the qx fare flights between atlanta and oakland on delta airlines",
        "slots": "O O O B-fare_basis_code I-fare_basis_code O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "i need information for flights leaving san francisco on thursday evening and returning to boston",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O B-depart_date.day_name B-depart_time.period_of_day O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from kansas city to denver after 845 in the morning",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from baltimore to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from salt lake city to las vegas",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to leave from boston on tuesday and i 'd like to leave sometime in the morning",
        "slots": "O O O O O O B-fromloc.city_name O B-depart_date.day_name O O O O O O O O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me us air flights from san francisco to pittsburgh on tuesday",
        "slots": "O O B-airline_name I-airline_name O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "and what are the flights from nashville to tacoma on the eighteenth again",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_number O",
        "intent": "flight"
    },
    {
        "utterance": "list daily flights from atlanta to denver",
        "slots": "O B-flight_days O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "are there any direct flights from atlanta to philadelphia arriving in philadelphia about 12 noon",
        "slots": "O O O B-connect O O B-fromloc.city_name O B-toloc.city_name O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "list the nonstop flights on wednesday june second from miami to washington arriving in washington between 1115 am and 1245 pm",
        "slots": "O O B-flight_stop O O B-arrive_date.day_name B-arrive_date.month_name B-arrive_date.day_number O B-fromloc.city_name O B-toloc.city_name O O B-toloc.city_name O B-arrive_time.start_time I-arrive_time.start_time O B-arrive_time.end_time I-arrive_time.end_time",
        "intent": "flight"
    },
    {
        "utterance": "what are the rental car rates in san francisco",
        "slots": "O O O B-transport_type I-transport_type O O B-city_name I-city_name",
        "intent": "ground_fare"
    },
    {
        "utterance": "is there any flight leaving washington around 3 o'clock for denver",
        "slots": "O O O O O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what ground transportation is available in baltimore",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what 's the cheapest one way flight from oakland to washington dc",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to go from boston to pittsburgh to find the cheapest flight",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-cost_relative O",
        "intent": "flight"
    },
    {
        "utterance": "i would like information on flights from baltimore to atlanta on thursday arriving in atlanta before 6 pm",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i would like a nonstop flight from new york to las vegas on march second",
        "slots": "O O O O B-flight_stop O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what flights leave chicago and arrive in detroit around 6 pm next tuesday",
        "slots": "O O O B-fromloc.city_name O O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time B-arrive_date.date_relative B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "define airline hp",
        "slots": "O O B-airline_code",
        "intent": "airline"
    },
    {
        "utterance": "show all flights philadelphia to dallas",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is there limo service at pittsburgh airport",
        "slots": "O O B-transport_type O O B-airport_name I-airport_name",
        "intent": "ground_service"
    },
    {
        "utterance": "please give me fares from denver to philadelphia",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what is the distance from san francisco international airport to san francisco",
        "slots": "O O O O O B-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name O B-toloc.city_name I-toloc.city_name",
        "intent": "distance"
    },
    {
        "utterance": "how much does it cost to fly from boston to baltimore on a saturday",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name",
        "intent": "airfare"
    },
    {
        "utterance": "are there any flights from denver to atlanta to pittsburgh",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "cheapest airfare from tacoma to orlando",
        "slots": "B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i want to go from denver to oakland",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights going from boston to atlanta before 7 am on thursday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to find flights from minneapolis to long beach after 4 o'clock on monday june fourteenth please",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number O",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from new york to miami",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the least expensive one way fare between philadelphia and boston",
        "slots": "O O O B-cost_relative I-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show flights from pittsburgh into san francisco",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are connecting flights from chicago to seattle on june first",
        "slots": "O O B-connect O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me all connecting flights on united airlines between boston and san francisco",
        "slots": "O O O B-connect O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me american airlines from milwaukee to phoenix on saturday and sunday",
        "slots": "O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "please show me airlines with flights from denver to boston with a stopover in philadelphia",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "please list available flights for next saturday from philadelphia to dallas",
        "slots": "O O O O O B-depart_date.date_relative B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest flight from pittsburgh to atlanta",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the total seating capacity of all aircraft of american airlines",
        "slots": "O O O B-mod O O O O O O B-airline_name I-airline_name",
        "intent": "capacity"
    },
    {
        "utterance": "one way flights from ontario to tacoma leaving before 10 am on any day and first class",
        "slots": "B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time O O O O B-class_type I-class_type",
        "intent": "flight"
    },
    {
        "utterance": "could i have the flights from newark to orlando please",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "which airline has the most business class flights",
        "slots": "O O O O B-mod B-class_type I-class_type O",
        "intent": "airline"
    },
    {
        "utterance": "show me the nonstop flights from nashville to st. louis",
        "slots": "O O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "do you have an early morning direct flight from philadelphia to pittsburgh",
        "slots": "O O O O B-depart_time.period_of_day B-depart_time.period_of_day B-connect O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how much does flight ua 270 from denver to philadelphia cost",
        "slots": "O O O O B-airline_code B-flight_number O B-fromloc.city_name O B-toloc.city_name O",
        "intent": "airfare"
    },
    {
        "utterance": "what ground transportation is available in dallas",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "list flights between oakland and san francisco",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to book the cheapest one way flight from pittsburgh to atlanta on july twentieth",
        "slots": "O O O O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "i would like to fly from boston to baltimore in the afternoon what flights are there",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day O O O O",
        "intent": "flight"
    },
    {
        "utterance": "all flights to baltimore after 12 pm",
        "slots": "O O O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me the fares for delta flights from dallas to san francisco",
        "slots": "O O O O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what flights go from boston to orlando",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "does midwest express serve philadelphia",
        "slots": "O B-airline_name O O B-city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the lowest fare from denver to pittsburgh",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what flights do you have from baltimore to san francisco",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "does us air have any flights out of atlanta to denver",
        "slots": "O B-airline_name I-airline_name O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "when do planes leave boston for",
        "slots": "O O O O B-fromloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "list flights from montreal to washington with the lowest one way fares that leaves on saturday",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O O B-cost_relative B-round_trip I-round_trip O O O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "please give me a list of all the flights between dallas and baltimore and their cost",
        "slots": "O O O O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O",
        "intent": "flight+airfare"
    },
    {
        "utterance": "list all flights on sunday from san francisco to pittsburgh nonstop",
        "slots": "O O O O B-depart_date.day_name O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "what type of aircraft leaves from boston to washington dc before 9 am",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "aircraft"
    },
    {
        "utterance": "do you have flights from st. petersburg to toronto on monday",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the least expensive one way fare from boston to san francisco",
        "slots": "O O O B-cost_relative I-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what is the cheapest one way fare between boston and oakland",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what are the flights from atlanta to baltimore which arrive in baltimore at 7 o'clock pm",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-toloc.city_name O B-arrive_time.time I-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest morning flight leaving boston for washington",
        "slots": "O O O B-flight_mod B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "okay that sounds great let 's go from atlanta on april twenty one in the morning to dallas least expensive fare one way",
        "slots": "O O O O O O O O B-fromloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O O B-depart_time.period_of_day O B-toloc.city_name B-cost_relative I-cost_relative O B-round_trip I-round_trip",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from boston to pittsburgh",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all the flights from columbus to baltimore",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'm sorry i wanted to fly twa is there a flight between oakland and boston with a stopover in dallas fort worth on twa",
        "slots": "O O O O O O O B-airline_code O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name I-stoploc.city_name I-stoploc.city_name O B-airline_code",
        "intent": "flight"
    },
    {
        "utterance": "i would like an afternoon flight from washington to boston on august twentieth",
        "slots": "O O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "list for me only the united flights between denver and oakland",
        "slots": "O O O O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from atlanta to denver which leave after 5 o'clock pm the day after tomorrow",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time I-depart_time.time B-depart_date.today_relative I-depart_date.today_relative I-depart_date.today_relative I-depart_date.today_relative",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from tampa to st. louis",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is restriction ap57",
        "slots": "O O O B-restriction_code",
        "intent": "restriction"
    },
    {
        "utterance": "saturday or sunday flights between milwaukee and phoenix american airlines",
        "slots": "B-depart_date.day_name B-or B-depart_date.day_name O O B-fromloc.city_name O B-toloc.city_name B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "give me american airlines flights from milwaukee to phoenix on saturday and on sunday",
        "slots": "O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the cheapest round trip flights from denver to pittsburgh",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the ground transportation in denver",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what types of ground transportation are available in denver",
        "slots": "O O O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show afternoon flights from dallas to san francisco",
        "slots": "O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how far is oakland airport from downtown",
        "slots": "O O O B-fromloc.airport_name I-fromloc.airport_name O O",
        "intent": "distance"
    },
    {
        "utterance": "are there any other flights from boston to pittsburgh wednesday next week later than 5 pm",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.day_name B-depart_date.date_relative O B-depart_time.time_relative O B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i would like to see the economy fares for pittsburgh to philadelphia",
        "slots": "O O O O O O B-economy O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "flights from philadelphia to oakland",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "american airlines leaving phoenix",
        "slots": "B-airline_name I-airline_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest arrival in salt lake city of a flight from toronto",
        "slots": "O O O B-flight_mod O O B-toloc.city_name I-toloc.city_name I-toloc.city_name O O O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight leaving from boston going to atlanta",
        "slots": "O O O B-flight_mod O O O B-fromloc.city_name O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from baltimore to seattle",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like a nonstop flight from new york to las vegas on march second",
        "slots": "O O O O B-flight_stop O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "now show me the flights from memphis to cleveland",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there from milwaukee to phoenix on saturday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from atlanta to denver on friday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from milwaukee to orlando one way",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip",
        "intent": "flight"
    },
    {
        "utterance": "list all the airlines that service denver",
        "slots": "O O O O O O B-city_name",
        "intent": "airline"
    },
    {
        "utterance": "show me flights from atlanta to baltimore denver and dallas",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what economy flights are available from dallas to baltimore on december seventeenth",
        "slots": "O B-economy O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "i want to travel from kansas city to chicago round trip leaving wednesday june sixteenth arriving in chicago at around 7 o'clock in the evening and returning the next day arriving in kansas city at around 7 o'clock in the evening which airlines fly that route",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number O O B-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time O O B-arrive_time.period_of_day O O O B-return_date.date_relative O O O B-toloc.city_name I-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time O O B-arrive_time.period_of_day O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "requesting flight information from boston to denver on wednesday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "now get me from pittsburgh to denver",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "are there any flights from new york to montreal canada leaving on thursday",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-toloc.country_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "phoenix to denver",
        "slots": "B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please give all flights from dallas to oakland california monday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_name B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights between atlanta and washington dc for wednesdays",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from oakland to san francisco on january twenty first 1992",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number B-depart_date.year",
        "intent": "flight"
    },
    {
        "utterance": "what is the distance from boston airport to boston",
        "slots": "O O O O O B-fromloc.airport_name I-fromloc.airport_name O B-toloc.city_name",
        "intent": "distance"
    },
    {
        "utterance": "show me all flights from philadelphia to dallas which arrive in dallas before 3 o'clock pm on saturday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time I-arrive_time.time O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "find the earliest flight from boston to san francisco that serves a meal",
        "slots": "O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-meal",
        "intent": "flight"
    },
    {
        "utterance": "list all the landings at general mitchell international",
        "slots": "O O O O O B-toloc.airport_name I-toloc.airport_name I-toloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights from seattle on continental which depart after 430 pm",
        "slots": "O O O O B-fromloc.city_name O B-airline_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "can you tell me what flights you have from baltimore to dallas",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "does american airlines fly to san francisco from atlanta",
        "slots": "O B-airline_name I-airline_name O O B-toloc.city_name I-toloc.city_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from denver to westchester county",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights from denver to philadelphia",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "okay on monday may thirty first i 'd like to go from san diego to phoenix early in the morning",
        "slots": "O O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-depart_time.period_mod O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "is there a continental flight leaving from las vegas to new york nonstop",
        "slots": "O O O B-airline_name O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "flight information from pittsburgh to denver",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please show me round trip tickets from denver to oakland",
        "slots": "O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "may i see all the flights from cleveland to dallas",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all daily flights between milwaukee and orlando",
        "slots": "O O O B-flight_days O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "find travel arrangements for a one way flight from san francisco to dallas",
        "slots": "O O O O O B-round_trip I-round_trip O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "all flights from washington dc to san francisco on november twelfth",
        "slots": "O O O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name I-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "please list all flights from oakland to dallas on sunday morning",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what does fare code m mean",
        "slots": "O O O O B-fare_basis_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "list all arrivals from any airport to baltimore on thursday morning arriving before 9 am",
        "slots": "O O O O O O O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "give me all the flights from memphis to charlotte",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list flights from denver to philadelphia",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like the flights available from boston to denver arriving in denver on 9 o'clock wednesday morning on or by 9 o'clock wednesday morning",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-toloc.city_name O B-arrive_time.time I-arrive_time.time B-arrive_date.day_name B-arrive_time.period_of_day O B-or B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time B-arrive_date.day_name B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show all nonstop flights from atlanta to san francisco",
        "slots": "O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me about the ground transportation in boston",
        "slots": "O O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i need a flight from logan to atlanta this afternoon",
        "slots": "O O O O O B-fromloc.airport_name O B-toloc.city_name B-depart_date.today_relative B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to book a flight from atlanta to denver",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what airlines fly between atlanta and san francisco",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "i would like to fly from denver to boston on wednesday the twenty first",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what is the cost of flight dl 106 from philadelphia to boston",
        "slots": "O O O O O O B-airline_code B-flight_number O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me all flights from orlando to san diego on a boeing 737",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-aircraft_code",
        "intent": "flight"
    },
    {
        "utterance": "information on american airlines from washington to fort worth",
        "slots": "O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the ground transportation between airport and baltimore",
        "slots": "O O O O O O O O B-toloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what is the cost of a first class ticket from baltimore to dallas",
        "slots": "O O O O O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "american flights from san francisco please",
        "slots": "B-airline_name O O B-fromloc.city_name I-fromloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "shortest flight from boston to philadelphia",
        "slots": "B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from san francisco to pittsburgh which arrive in pittsburgh before 9 o'clock am tomorrow",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time I-arrive_time.time B-arrive_date.today_relative",
        "intent": "flight"
    },
    {
        "utterance": "find me a flight leaving boston at 12 o'clock",
        "slots": "O O O O O B-fromloc.city_name O B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from atlanta to san francisco which leave the day after tomorrow after 5 o'clock pm",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_date.today_relative I-depart_date.today_relative I-depart_date.today_relative I-depart_date.today_relative B-depart_time.time_relative B-depart_time.time I-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from boston to pittsburgh next wednesday night after 6 o'clock",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.date_relative B-depart_date.day_name B-depart_time.period_of_day B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "please show me the flights from atlanta to denver",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "may i have a listing of flight numbers from columbus ohio to minneapolis minnesota on monday",
        "slots": "O O O O O O O O O B-fromloc.city_name B-fromloc.state_name O B-toloc.city_name B-toloc.state_name O B-depart_date.day_name",
        "intent": "flight_no"
    },
    {
        "utterance": "show me wednesday afternoon flights from denver to san francisco",
        "slots": "O O B-depart_date.day_name B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is fare code h",
        "slots": "O O O O B-fare_basis_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "what is the cheapest round trip flight from atlanta to pittsburgh",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the latest flight you have departing dallas to philadelphia",
        "slots": "O O O B-flight_mod O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how many people fit on a 72s airplane",
        "slots": "O O O O O O B-aircraft_code O",
        "intent": "capacity"
    },
    {
        "utterance": "what 's the price of the least expensive first class round trip ticket on us air from cleveland to miami",
        "slots": "O O O O O O B-cost_relative I-cost_relative B-class_type I-class_type B-round_trip I-round_trip O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i 'd like information on a flight from atlanta to denver a morning flight",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.period_of_day O",
        "intent": "flight"
    },
    {
        "utterance": "i would like to book a flight from chicago to seattle on june fourth",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what does fare code qo mean",
        "slots": "O O O O B-fare_basis_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "show me all flights from montreal",
        "slots": "O O O O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to fly from salt lake city back to st. petersburg on wednesday",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights leave seattle on sunday on continental",
        "slots": "O O O B-fromloc.city_name O B-depart_date.day_name O B-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "all flights leaving washington dc to san francisco that are first class",
        "slots": "O O O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name I-toloc.city_name O O B-class_type I-class_type",
        "intent": "flight"
    },
    {
        "utterance": "list flights from phoenix to detroit on thursday june twenty fourth",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what is the last flight from dallas to boston in the evening",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like the first flight in the morning from boston to washington",
        "slots": "O O O O B-flight_mod O O O B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the seating capacities of planes between pittsburgh and baltimore",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "capacity"
    },
    {
        "utterance": "what are the prices of the flights from atlanta to dallas in the morning",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "airfare"
    },
    {
        "utterance": "flights from charlotte to baltimore",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight from oakland to washington dc on sunday",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there available from philadelphia to denver on wednesday with economy class",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-economy I-economy",
        "intent": "flight"
    },
    {
        "utterance": "what flights arrive in seattle from on continental",
        "slots": "O O O O B-toloc.city_name O O B-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "list flights from philadelphia to dallas that stop in atlanta",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight i can get from baltimore to boston",
        "slots": "O O O B-flight_mod O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "boston to pittsburgh wednesday",
        "slots": "B-fromloc.city_name O B-toloc.city_name B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "are there any turboprop flights from pittsburgh to baltimore on december seventeenth",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "list the takeoffs and landings at general mitchell international",
        "slots": "O O O O O O B-airport_name I-airport_name I-airport_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from san diego to indianapolis leaving in the afternoon on tuesday",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O B-depart_time.period_of_day O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like a flight from boston to san francisco leaving in the afternoon any time please",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-depart_time.period_of_day O O O",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight from denver to pittsburgh",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "all flights from cleveland to newark",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there between nashville and st. louis which are nonstop and arrive after noon and before 8 pm",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-flight_stop O O B-arrive_time.time_relative B-arrive_time.time O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me ground transport in seattle",
        "slots": "O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "how much does flight dl 402 from denver to philadelphia cost",
        "slots": "O O O O B-airline_code B-flight_number O B-fromloc.city_name O B-toloc.city_name O",
        "intent": "airfare"
    },
    {
        "utterance": "what are the flights and fares from atlanta to philadelphia",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight+airfare"
    },
    {
        "utterance": "what flights from houston to milwaukee on friday on american airlines",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "flights on friday from newark to tampa",
        "slots": "O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please give me all the flights from long beach california to memphis tennessee",
        "slots": "O O O O O O O B-fromloc.city_name I-fromloc.city_name B-fromloc.state_name O B-toloc.city_name B-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from houston to milwaukee on friday on american airlines",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from kansas city to denver",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me the continental flights from chicago to seattle on saturday morning",
        "slots": "O O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i want to leave boston at 838",
        "slots": "O O O O B-fromloc.city_name O B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i need to fly from pittsburgh to oakland and depart in the afternoon",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "list round trip flights between boston and oakland using twa",
        "slots": "O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name O B-airline_code",
        "intent": "flight"
    },
    {
        "utterance": "flight information from san francisco to pittsburgh",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "for each airline flying between boston and san francisco what is the earliest flight",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-flight_mod O",
        "intent": "flight"
    },
    {
        "utterance": "show me the latest nonstop flight from denver to washington dc",
        "slots": "O O O B-flight_mod B-flight_stop O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "please inform me the type of aircraft used on a flight from atlanta to denver before 12 o'clock noon",
        "slots": "O O O O O O O O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time I-depart_time.time",
        "intent": "aircraft"
    },
    {
        "utterance": "find the cheapest flight from denver to atlanta with a stopover in pittsburgh",
        "slots": "O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all takeoffs and landings at general mitchell international",
        "slots": "O O O O O O B-airport_name I-airport_name I-airport_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights please from washington to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "all right do you have a flight from atlanta to boston",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from boston to denver on august second",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "could you give me the schedule of flights for american and delta to dfw on august fifteenth",
        "slots": "O O O O O B-flight_time O O O B-airline_name O B-airline_name O B-toloc.airport_code O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight_time"
    },
    {
        "utterance": "show me flights from baltimore to philadelphia",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from philadelphia to denver on sunday which leave philadelphia after noon",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "flights from newark new jersey to cleveland ohio",
        "slots": "O O B-fromloc.city_name B-fromloc.state_name I-fromloc.state_name O B-toloc.city_name B-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "rental cars in boston",
        "slots": "B-transport_type I-transport_type O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "list all flights from denver to philadelphia",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what delta flights are available from pittsburgh to san francisco",
        "slots": "O B-airline_name O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list all the flights from boston to san francisco leaving before 10 am",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i need to go from boston to atlanta in the same day find me the earliest flight from boston",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.date_relative O O O O B-flight_mod O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what classes of service does twa provide",
        "slots": "O O O O O B-airline_code O",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight on continental airlines leaving from boston making a stop in denver and arriving in san francisco",
        "slots": "O O O O O O B-airline_name I-airline_name O O B-fromloc.city_name O O O O B-stoploc.city_name O O O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from philadelphia to boston on monday which serve a meal and arrive before noon",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O O O B-meal O O B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from denver to pittsburgh which serve a meal for the day after tomorrow",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-meal O B-depart_date.today_relative I-depart_date.today_relative I-depart_date.today_relative I-depart_date.today_relative",
        "intent": "flight"
    },
    {
        "utterance": "i want a evening flight from dallas to milwaukee",
        "slots": "O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight from atlanta to boston",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list the american airlines flights from houston to milwaukee",
        "slots": "O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the one way flights from atlanta to pittsburgh",
        "slots": "O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "does continental airlines fly from denver to san francisco",
        "slots": "O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all the direct flights from atlanta to baltimore",
        "slots": "O O O O B-connect O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is lowest cost air fare available for a flight from dallas to baltimore arriving on july fourth",
        "slots": "O O B-cost_relative I-cost_relative O O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "airfare"
    },
    {
        "utterance": "i 'd like to have flight from denver to pittsburgh",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights from pittsburgh to philadelphia",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list nonstop flights on sunday from new york to las vegas and list nonstop flights on sunday from memphis to las vegas",
        "slots": "O B-flight_stop O O B-arrive_date.day_name O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-flight_stop O O B-arrive_date.day_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list all northwest flights into denver",
        "slots": "O O O B-airline_name O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights on delta from atlanta in the morning",
        "slots": "O O O O O B-airline_name O B-fromloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from san francisco to boston philadelphia or baltimore",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-toloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what american airlines flights depart milwaukee for phoenix on saturday or sunday",
        "slots": "O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-or B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "find a flight from philadelphia to san francisco please on delta",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what does fare code y mean",
        "slots": "O O O O B-fare_basis_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "show me the airlines that fly from toronto to san francisco",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "show all tuesday morning flights from pittsburgh to denver",
        "slots": "O O B-depart_date.day_name B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "eastern flight 825 from atlanta to denver leaving at 555 what type of aircraft is used on that flight",
        "slots": "B-airline_name O B-flight_number O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.time O O O O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "what 's the earliest flight from pittsburgh to baltimore on thursday morning",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "morning flight from dallas to atlanta",
        "slots": "B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights from indianapolis to seattle",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the most expensive one way first class fare from baltimore to dallas",
        "slots": "O O O B-cost_relative I-cost_relative B-round_trip I-round_trip B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what flights has continental from atlanta",
        "slots": "O O O B-airline_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which cities does united airlines service",
        "slots": "O O O B-airline_name I-airline_name O",
        "intent": "city"
    },
    {
        "utterance": "show me flights from denver to washington dc wednesday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "are there any flights from atlanta to baltimore",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights do you have between oakland and boston with a stopover in dallas fort worth",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name I-stoploc.city_name I-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what kind of aircraft do you have flying from boston to san francisco on august twenty seventh",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "aircraft"
    },
    {
        "utterance": "on tuesday the twenty third flights from philadelphia to san francisco on american airlines",
        "slots": "O B-depart_date.day_name O B-depart_date.day_number I-depart_date.day_number O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'm interested in a flight from dallas to washington and i 'm also interested in going to baltimore",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O O O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "dallas to oakland monday",
        "slots": "B-fromloc.city_name O B-toloc.city_name B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "can you show me the flights from dallas to baltimore with economy fares",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-economy O",
        "intent": "flight"
    },
    {
        "utterance": "which flights on united airlines and northwest go through denver",
        "slots": "O O O B-airline_name I-airline_name O B-airline_name O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight that i can take from boston to baltimore",
        "slots": "O O O B-flight_mod O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the daily flight schedule between boston and pittsburgh",
        "slots": "O O O B-flight_days B-flight_time I-flight_time O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from atlanta to boston",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the earliest flight from boston to philadelphia",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is there ground transportation between airport and downtown in boston",
        "slots": "O O O O O O O O O B-toloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "can you list all nonstop flights between st. petersburg and charlotte that leave in the afternoon and arrive soon after 5 pm",
        "slots": "O O O O B-flight_stop O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O O B-arrive_time.period_of_day O O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me fares from dallas to baltimore that cost less than 300 dollars",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O O B-cost_relative O B-fare_amount I-fare_amount",
        "intent": "airfare"
    },
    {
        "utterance": "i wish to book a flight from pittsburgh to atlanta coach discount fare",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name B-class_type O O",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from pittsburgh to dallas",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights between san francisco and philadelphia for september fifteenth",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight from denver to pittsburgh",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "find me the earliest flight from boston to atlanta on any day of the week",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "flights from denver to westchester county new york weekdays",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-toloc.city_name I-toloc.city_name B-flight_mod",
        "intent": "flight"
    },
    {
        "utterance": "tell me about flights on american airlines from dallas fort worth to philadelphia on june twenty ninth",
        "slots": "O O O O O B-airline_name I-airline_name O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from westchester county to cincinnati",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'm trying to find the flight number from a flight from orlando to cleveland on us air and it arrives around 10 pm",
        "slots": "O O O O O O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name O O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight_no"
    },
    {
        "utterance": "can you please tell me the type of aircraft used flying from atlanta to denver on eastern flight 825 leaving at 555",
        "slots": "O O O O O O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name O B-flight_number O O B-depart_time.time",
        "intent": "aircraft"
    },
    {
        "utterance": "does flight dl 323 dl 229 from boston to denver stop in philadelphia",
        "slots": "O O B-airline_code B-flight_number B-airline_code B-flight_number O B-fromloc.city_name O B-toloc.city_name O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from dulles to san francisco leaving after 6 pm",
        "slots": "O O O O O B-fromloc.airport_name O B-toloc.city_name I-toloc.city_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "is there a round trip flight from baltimore to denver connecting in dallas",
        "slots": "O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name B-connect O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights leave charlotte north carolina and arrive in phoenix arizona on monday before 4 pm",
        "slots": "O O O B-fromloc.city_name B-fromloc.state_name I-fromloc.state_name O O O B-toloc.city_name B-toloc.state_name O B-arrive_date.day_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "how much does the limousine service cost within pittsburgh",
        "slots": "O O O O B-transport_type O O O B-city_name",
        "intent": "ground_fare"
    },
    {
        "utterance": "i need a flight from phoenix to detroit leaving monday evening",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "northwest flights with stops in denver",
        "slots": "B-airline_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to take a flight from washington dc stop in denver and with my final destination as san francisco",
        "slots": "O O O O O O O O B-fromloc.city_name B-fromloc.state_code O O B-stoploc.city_name O O O O O O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what does yn stand for",
        "slots": "O O B-fare_basis_code O O",
        "intent": "abbreviation"
    },
    {
        "utterance": "hi could i get a one way ticket from milwaukee to orlando",
        "slots": "O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "please tell me which airline has the most departures from atlanta",
        "slots": "O O O O O O O B-mod O O B-fromloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "what flights from st. louis to st. paul on thursday leaving after 10 am",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show flights from pittsburgh to oakland on us airlines with fare information",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name O O O",
        "intent": "flight"
    },
    {
        "utterance": "flight from milwaukee to denver",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me fares from baltimore to philadelphia",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "is there a flight from nashville to houston in the evening tomorrow",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day B-depart_date.today_relative",
        "intent": "flight"
    },
    {
        "utterance": "which flights arrive in st. louis from st. paul on thursday morning",
        "slots": "O O O O B-toloc.city_name I-toloc.city_name O B-fromloc.city_name I-fromloc.city_name O B-arrive_date.day_name B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what does mco mean",
        "slots": "O O B-airport_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "what flight from boston to baltimore is the least expensive flight",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O O B-cost_relative I-cost_relative O",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from boston to oakland",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "dallas ground transportation",
        "slots": "B-city_name O O",
        "intent": "ground_service"
    },
    {
        "utterance": "what types of ground transportation are available in philadelphia",
        "slots": "O O O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what flights are available from philadelphia to denver on sundays",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me a list of flights from boston to atlanta leaving after noon and arriving before 7 pm",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.time_relative B-depart_time.time O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from denver or philadelphia or pittsburgh to baltimore",
        "slots": "O O O O O B-fromloc.city_name B-or B-fromloc.city_name B-or B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "thank you for that information now i would like to book a flight from philadelphia to boston on the night of april sixteen around 9 o'clock",
        "slots": "O O O O O O O O O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day O B-depart_date.month_name B-depart_date.day_number B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what does fare code q mean",
        "slots": "O O O O B-fare_basis_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "flights from new york to miami",
        "slots": "O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list flights from philadelphia to san francisco via dallas",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the flights from dallas to baltimore",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is there a flight departing from san francisco and arriving in oakland on november seventh in the evening",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O O O B-toloc.city_name O B-arrive_date.month_name B-arrive_date.day_number O O B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "flight from denver to philadelphia saturday afternoon",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "may i have a listing of flights on monday from minneapolis to long beach california please",
        "slots": "O O O O O O O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-toloc.state_name O",
        "intent": "flight"
    },
    {
        "utterance": "show me the type of aircraft that cp uses",
        "slots": "O O O O O O O B-airline_code O",
        "intent": "aircraft"
    },
    {
        "utterance": "show me the flights from philadelphia to dallas",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "july seventh what is the cost of a round trip ticket traveling first class on united airlines leaving from denver going to baltimore",
        "slots": "B-depart_date.month_name B-depart_date.day_number O O O O O O B-round_trip I-round_trip O O B-class_type I-class_type O B-airline_name I-airline_name O O B-fromloc.city_name O O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show departures and arrivals in atlanta for american airlines",
        "slots": "O O O O O B-city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "please give me the flights from denver to pittsburgh which leave in the morning on july second",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-depart_time.period_of_day O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show morning flights from philadelphia to dallas",
        "slots": "O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "do you have a flight from san francisco to atlanta around 8 am",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from boston to san francisco leaving after 4 pm on friday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show flights from pittsburgh to oakland",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "can you list the latest flights from oakland to salt lake city on wednesday",
        "slots": "O O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from philadelphia to san francisco next wednesday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_date.date_relative B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from baltimore to oakland",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want a direct flight from oakland to boston that leaves on a wednesday",
        "slots": "O O O B-connect O O B-fromloc.city_name O B-toloc.city_name O O O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "houston airports",
        "slots": "B-city_name O",
        "intent": "airport"
    },
    {
        "utterance": "find any flight from boston to oakland stopping in denver",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the distance from la guardia to new york 's downtown",
        "slots": "O O O O O B-fromloc.airport_name I-fromloc.airport_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name O",
        "intent": "distance"
    },
    {
        "utterance": "what flights depart baltimore on friday and arrive in san francisco by 8 pm",
        "slots": "O O O B-fromloc.city_name O B-depart_date.day_name O O O B-toloc.city_name I-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "may i have a listing of flights from milwaukee to tacoma washington departing in the evening",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_name O O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what is american 's last flight from boston to washington dc on july twenty first",
        "slots": "O O B-airline_name I-airline_name B-flight_mod O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what flights from memphis to miami on wednesday",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "find me the flights that are nonstop between boston and dallas that leave between 12 and 2 in the afternoon",
        "slots": "O O O O O O B-flight_stop O B-fromloc.city_name O B-toloc.city_name O O O B-depart_time.start_time O B-depart_time.end_time O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "can you tell me about ground transportation between the dallas airport and downtown dallas",
        "slots": "O O O O O O O O O B-fromloc.airport_name I-fromloc.airport_name O O B-toloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i 'd like a flight on july ninth from orlando to kansas city in the afternoon",
        "slots": "O O O O O O B-depart_date.month_name B-depart_date.day_number O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "flights from montreal to las vegas",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the first flight from atlanta to boston leaving on thursday september fifth",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "us air next wednesday from cleveland to miami",
        "slots": "B-airline_name I-airline_name B-depart_date.date_relative B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight from kansas city to st. paul departing at 4 pm",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i need information on a flight from san francisco to atlanta that would stop in fort worth",
        "slots": "O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name I-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the most expensive way i can fly to washington",
        "slots": "O O O B-cost_relative I-cost_relative O O O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list flights from pittsburgh to baltimore on thursday morning nonstop",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day B-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "list flights from pittsburgh to san francisco",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "may i fly from san francisco to baltimore",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "find the earliest breakfast flight from boston to oakland",
        "slots": "O O B-flight_mod B-meal_description O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what nonstop flights between atlanta and washington leave atlanta after 6 o'clock pm",
        "slots": "O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i 'm looking for a flight traveling from boston to denver one way and the cheapest way possible",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip O O B-cost_relative O O",
        "intent": "flight"
    },
    {
        "utterance": "airports in new york",
        "slots": "O O B-city_name I-city_name",
        "intent": "airport"
    },
    {
        "utterance": "what flight leaves dallas for atlanta on august twenty seventh in the evening",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "please show me airlines with flights from denver to boston stop philadelphia",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-stoploc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "all right would you let me know type of aircraft united airlines is using on the flights from denver to san francisco i would like to know the type of aircraft that they use on these flights before 10 in the morning",
        "slots": "O O O O O O O O O O B-airline_name I-airline_name O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O O O O O O O O O O O O B-depart_time.time_relative B-depart_time.time O O B-depart_time.period_of_day",
        "intent": "aircraft"
    },
    {
        "utterance": "list the nonstop flights from miami to washington dc",
        "slots": "O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "list all flights on continental leaving denver and arriving at chicago on monday before noon",
        "slots": "O O O O B-airline_name O B-fromloc.city_name O O O B-toloc.city_name O B-arrive_date.day_name B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "can you show me evening flights from nashville to houston that serve dinner",
        "slots": "O O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name O O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "list flights from atlanta to boston on wednesday afternoon",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "give me a flight from charlotte to baltimore on tuesday morning",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "ground transportation washington",
        "slots": "O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "is there a flight on american airlines from boston to denver",
        "slots": "O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "could you please give me a one way fare from pittsburgh to atlanta",
        "slots": "O O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me all flights from boston to denver which arrive in denver wednesday before 6",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-toloc.city_name B-arrive_date.day_name B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "can i have a list of all the thursday flights from baltimore to atlanta that leave after 1 pm",
        "slots": "O O O O O O O O B-depart_date.day_name O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what airlines fly between boston and atlanta",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "show me the latest flight to love field",
        "slots": "O O O B-flight_mod O O B-toloc.airport_name I-toloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "please show me the flights from las vegas to detroit on the twenty eighth",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "from los angeles to phoenix on a friday",
        "slots": "O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from atlanta to st. louis on tuesday arriving around 230 pm",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from baltimore to dallas on sunday afternoon",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "do you have a united flight from dallas to san francisco",
        "slots": "O O O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights from orlando to kansas city then to minneapolis",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "ground transportation in dallas and boston",
        "slots": "O O O B-city_name O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show me the earliest flight on thursday from atlanta to washington",
        "slots": "O O O B-flight_mod O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which airline has more business class flights than any other airline",
        "slots": "O O O B-mod B-class_type I-class_type O O O O O",
        "intent": "airline"
    },
    {
        "utterance": "i need a flight from kansas city to newark on the first of july",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_number O B-depart_date.month_name",
        "intent": "flight"
    },
    {
        "utterance": "find a flight on delta from philadelphia to san francisco",
        "slots": "O O O O B-airline_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what ground transport is available in charlotte",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "could you tell me about ground transportation arrangements from the dallas airport to downtown dallas",
        "slots": "O O O O O O O O O O B-fromloc.airport_name I-fromloc.airport_name O O B-toloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "is there an airline that advertises having more flights than any other airline",
        "slots": "O O O O O O O B-mod O O O O O",
        "intent": "airline"
    },
    {
        "utterance": "what flights leave from newark to los angeles in the afternoon",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i would like information on flights from denver to san francisco after noon on wednesday",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_time.time_relative B-depart_time.time O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "now please give me the latest flight tomorrow on twa from milwaukee to tacoma",
        "slots": "O O O O O B-flight_mod O B-depart_date.today_relative O B-airline_code O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the cheapest fare from san francisco to baltimore",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "fine can you give me information on ground transportation in washington dc to downtown",
        "slots": "O O O O O O O O O O B-city_name B-state_code O O",
        "intent": "ground_service"
    },
    {
        "utterance": "list the flights from dallas to san francisco on american airlines",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the price of a first class ticket from milwaukee to san francisco round trip",
        "slots": "O O O O O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-round_trip I-round_trip",
        "intent": "airfare"
    },
    {
        "utterance": "i need a flight leaving pittsburgh next monday arriving in fort worth before 10 am",
        "slots": "O O O O O B-fromloc.city_name B-depart_date.date_relative B-depart_date.day_name O O B-toloc.city_name I-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights to philadelphia in the evening",
        "slots": "O O O O O B-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me a list of flights from pittsburgh to baltimore on august third",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "i need a return flight from chicago to kansas city leaving chicago around 7 in the evening on the day following next wednesday",
        "slots": "O O O B-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time O O B-depart_time.period_of_day O O O B-depart_date.date_relative O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like a return flight from denver to atlanta evening flights",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.period_of_day O",
        "intent": "flight"
    },
    {
        "utterance": "what 're the flights from memphis to las vegas that arrive on a sunday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all the delta flights leaving pittsburgh between 12 and 4 in the afternoon",
        "slots": "O O O O B-airline_name O O B-fromloc.city_name O B-depart_time.start_time O B-depart_time.end_time O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what is restriction ap 55",
        "slots": "O O O B-restriction_code I-restriction_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "what is the cheapest fare from dallas to denver on delta",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name O B-airline_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me the airlines that fly from toronto to boston",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "what flights from baltimore to san francisco arrive before 8 pm in san francisco",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "round trip fares from baltimore to philadelphia under 1000 dollars",
        "slots": "B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name B-cost_relative B-fare_amount I-fare_amount",
        "intent": "airfare"
    },
    {
        "utterance": "please list the flights from ontario california to orlando florida",
        "slots": "O O O O O B-fromloc.city_name B-fromloc.state_name O B-toloc.city_name B-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from philadelphia to denver",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights on southwest airlines from san diego to san francisco",
        "slots": "O O O O O B-airline_name I-airline_name O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list flights from boston to san francisco that serve only breakfast",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "i need information for a flight from denver to atlanta",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all the us air flights leaving pittsburgh between 12 and 4 in the afternoon",
        "slots": "O O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-depart_time.start_time O B-depart_time.end_time O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what are all flights from pittsburgh to boston on wednesdays",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a return flight from denver to atlanta",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to fly from cleveland to san diego tomorrow and stop in indianapolis",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_date.today_relative O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from denver to baltimore on united airlines",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what type of ground transportation is available in washington",
        "slots": "O O O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "thank you very much now can you help me with information on flights from boston to atlanta",
        "slots": "O O O O O O O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the earliest flight from cleveland to memphis",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "hi i need to go from cincinnati to san jose california after 6 pm on saturday",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-toloc.state_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the ap 57 restriction",
        "slots": "O O O B-restriction_code I-restriction_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "i live in denver and i 'd like to make a trip to pittsburgh",
        "slots": "O O O B-fromloc.city_name O O O O O O O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights both direct and connecting from dallas fort worth to either san francisco or oakland that depart after 7 pm",
        "slots": "O O O O O O O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O O B-toloc.city_name I-toloc.city_name B-or B-toloc.city_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "last nonstop flight from los angeles to pittsburgh on monday night",
        "slots": "B-flight_mod B-flight_stop O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-arrive_date.day_name B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "weekday flights from san francisco to denver",
        "slots": "B-flight_mod O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to see the fare code again qx",
        "slots": "O O O O O O O O O B-fare_basis_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "what is the cheapest one way fare from pittsburgh to atlanta traveling on tuesday august twentieth",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number",
        "intent": "airfare"
    },
    {
        "utterance": "please list all flights on northwest and united airlines that go to denver",
        "slots": "O O O O O B-airline_name O B-airline_name I-airline_name O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights with fares from pittsburgh to san francisco",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what airline is ac",
        "slots": "O O O B-airline_code",
        "intent": "airline"
    },
    {
        "utterance": "what is fare code h",
        "slots": "O O O O B-fare_basis_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "from denver to washington dc on monday november eleventh 1991",
        "slots": "O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number B-depart_date.year",
        "intent": "flight"
    },
    {
        "utterance": "what times on wednesday could i take a plane from denver to oakland",
        "slots": "O B-flight_time O B-depart_date.day_name O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight_time"
    },
    {
        "utterance": "flights from baltimore to san francisco",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want a flight from toronto to montreal that leaves early friday morning",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_mod B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i would like to travel from boston to denver early in the morning",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.period_mod O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "in boston is there ground transportation between airport and downtown",
        "slots": "O B-city_name O O O O O O O O",
        "intent": "ground_service"
    },
    {
        "utterance": "how much is a first class ticket from baltimore to san francisco",
        "slots": "O O O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me the flights from toronto to salt lake city which leave toronto after 6 pm",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name O O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what flights do you have between pittsburgh and atlanta",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all trans world airline flights from indianapolis to houston that arrive in houston between 1030 am and 1130 am",
        "slots": "O O B-airline_name I-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name O O O B-toloc.city_name O B-arrive_time.start_time I-arrive_time.start_time O B-arrive_time.end_time I-arrive_time.end_time",
        "intent": "flight"
    },
    {
        "utterance": "i would like a ticket leaving from denver colorado to atlanta georgia with a stop in pittsburgh",
        "slots": "O O O O O O O B-fromloc.city_name B-fromloc.state_name O B-toloc.city_name B-toloc.state_name O O O O B-stoploc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "hello i would like to plan a flight from boston to denver",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "round trip flights from minneapolis to san diego coach economy fare",
        "slots": "B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-class_type B-economy O",
        "intent": "flight"
    },
    {
        "utterance": "what are the coach fares for flights from pittsburgh to denver",
        "slots": "O O O B-class_type O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me the flights from boston to philadelphia",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from new york to miami",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what airlines fly boston to baltimore",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "what is restriction ap 57",
        "slots": "O O O B-restriction_code I-restriction_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "what does d s stand for for meals",
        "slots": "O O B-meal_code I-meal_code O O O B-meal",
        "intent": "abbreviation"
    },
    {
        "utterance": "i 'd like an early morning weekday flight from san diego to phoenix",
        "slots": "O O O O B-depart_time.period_of_day B-depart_time.period_of_day B-flight_mod O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like a ticket on a plane from denver to atlanta i would like a coach class or lowest fare ticket",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-class_type I-class_type O B-cost_relative O O",
        "intent": "airfare"
    },
    {
        "utterance": "on may four atlanta to denver delta flight 257",
        "slots": "O B-depart_date.month_name B-depart_date.day_number B-fromloc.city_name O B-toloc.city_name B-airline_name O B-flight_number",
        "intent": "flight"
    },
    {
        "utterance": "what 's the schedule of flights from atlanta to boston on august first",
        "slots": "O O O B-flight_time O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight_time"
    },
    {
        "utterance": "i would like to fly to denver for under 500 dollars please show me the airfares between pittsburgh and denver",
        "slots": "O O O O O O B-toloc.city_name O B-cost_relative B-fare_amount I-fare_amount O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight departing san francisco and arriving in boston on november ninth",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name I-fromloc.city_name O O O B-toloc.city_name O B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what does fare code y mean",
        "slots": "O O O O B-fare_basis_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "flights from pittsburgh to los angeles thursday evening",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight to atlanta this afternoon",
        "slots": "O O O O O B-toloc.city_name B-depart_date.today_relative B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "could you tell me what flights you have that run daily from boston to san francisco please",
        "slots": "O O O O O O O O O O B-flight_days O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "how many flights does each airline have with first class service",
        "slots": "O O O O O O O O B-class_type I-class_type O",
        "intent": "quantity"
    },
    {
        "utterance": "show me the price of flight ea 212 from atlanta to washington",
        "slots": "O O O O O O B-airline_code B-flight_number O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me all flights between san francisco and philadelphia on september fifteenth with departure time after 12 pm",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number O B-flight_time I-flight_time B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "how many first class flights are provided by american airlines",
        "slots": "O O B-class_type I-class_type O O O O B-airline_name I-airline_name",
        "intent": "quantity"
    },
    {
        "utterance": "what flights are between washington and san francisco",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights go from chicago to seattle on saturday on continental airlines",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the cities that american airlines serves",
        "slots": "O O O O O B-airline_name I-airline_name O",
        "intent": "city"
    },
    {
        "utterance": "all delta flights to everywhere if you can",
        "slots": "O B-airline_name O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "what are the morning flights from philadelphia to dallas going on american airlines",
        "slots": "O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name O O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "an american airlines flight first class from philadelphia to dallas",
        "slots": "O B-airline_name I-airline_name O B-class_type I-class_type O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to go from boston to atlanta on monday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'm trying to make a connection between denver and san francisco does delta airline fly between those two",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name O O O O",
        "intent": "flight"
    },
    {
        "utterance": "is there an early morning delta airlines flight between boston and washington",
        "slots": "O O O B-depart_time.period_of_day B-depart_time.period_of_day B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight leaving boston and arriving in atlanta on november seventh",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O O O B-toloc.city_name O B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "list all flights leaving denver on continental on sunday",
        "slots": "O O O O B-fromloc.city_name O B-airline_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "does delta airline fly from denver to pittsburgh",
        "slots": "O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the flights arriving in atlanta from baltimore before noon on august fourth",
        "slots": "O O O O O B-toloc.city_name O B-fromloc.city_name B-arrive_time.time_relative B-arrive_time.time O B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "is there a flight from boston to san francisco making a stopover in dallas fort worth",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name I-stoploc.city_name I-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the transportation time from the airport to boston",
        "slots": "O O O O B-time O O O O B-toloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i need to go from boston to dallas",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available between boston and washington arriving in washington at 630",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-toloc.city_name O B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available wednesday afternoon from atlanta to san francisco",
        "slots": "O O O O B-depart_date.day_name B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from newark new jersey to ontario international next saturday",
        "slots": "O O O O O B-fromloc.city_name B-fromloc.state_name I-fromloc.state_name O B-toloc.airport_name I-toloc.airport_name B-depart_date.date_relative B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "please find a flight on delta from philadelphia to san francisco and give me the flight numbers",
        "slots": "O O O O O B-airline_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "which airlines serve denver",
        "slots": "O O O B-city_name",
        "intent": "airline"
    },
    {
        "utterance": "is there ground transportation from the airport to downtown phoenix",
        "slots": "O O O O O O O O O B-toloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what are the classes of service on twa",
        "slots": "O O O O O O O B-airline_code",
        "intent": "flight"
    },
    {
        "utterance": "what does ls stand for",
        "slots": "O O B-meal_code O O",
        "intent": "abbreviation"
    },
    {
        "utterance": "give me the flights leaving denver august ninth coming back to boston",
        "slots": "O O O O O B-fromloc.city_name B-depart_date.month_name B-depart_date.day_number O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are between boston and atlanta on july thirty first",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "list all daily flights between oakland and boston using american airline",
        "slots": "O O B-flight_days O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight from baltimore to san francisco on twa with a stop in denver",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_code O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight from boston to philadelphia",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "can i fly from boston to baltimore washington",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from pittsburgh to boston which leave before noon",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to buy a coach class ticket for a flight from denver to atlanta",
        "slots": "O O O O O O B-class_type I-class_type O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "please show me any united flights including connections between boston and san francisco at 5 in the evening",
        "slots": "O O O O B-airline_name O O B-connect O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_time.time O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from denver to oakland",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to see the flights from denver to philadelphia",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "does eastern airlines fly between boston and washington",
        "slots": "O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please show me airlines with flights from boston to denver",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "show first flight from philadelphia to dallas",
        "slots": "O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "are there any nonstop flights leaving from denver arriving in baltimore on july seventh",
        "slots": "O O O B-flight_stop O O O B-fromloc.city_name O O B-toloc.city_name O B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what airlines fly from toronto to san diego with a stopover in denver",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "what flights are there between atlanta and denver",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the cheapest flights from pittsburgh to atlanta",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from san diego to los angeles",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please show all flights from philadelphia to denver airport next sunday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.airport_name I-toloc.airport_name B-depart_date.date_relative B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights arrive in chicago on sunday on continental",
        "slots": "O O O O B-toloc.city_name O B-arrive_date.day_name O B-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available between baltimore and boston on august twelfth",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "a first class flight to san francisco on american airlines tuesday next week",
        "slots": "O B-class_type I-class_type O O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name B-depart_date.day_name B-depart_date.date_relative O",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there from nashville to houston tomorrow evening that serve dinner",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.today_relative B-depart_time.period_of_day O O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "is there a flight between san francisco and boston with a stopover in dallas fort worth",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name I-stoploc.city_name I-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like information on ground transportation in atlanta from the airport to the city in the morning around 9 am",
        "slots": "O O O O O O O O B-city_name O O O O O O O O B-period_of_day B-time_relative B-time I-time",
        "intent": "ground_service"
    },
    {
        "utterance": "show me the flights from boston to pittsburgh on wednesday or thursday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-or B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'm interested in a flight from pittsburgh to atlanta",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to see the flights available from pittsburgh to san francisco for monday",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i want a flight from ontario to chicago",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "hello i 'm trying to find a flight that goes from pittsburgh to denver after 2 pm",
        "slots": "O O O O O O O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what are the morning flights from nashville to tacoma and from nashville to san jose in the next two days",
        "slots": "O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_date.date_relative O O",
        "intent": "flight"
    },
    {
        "utterance": "what kind of plane flies from boston to pittsburgh after noon",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time",
        "intent": "aircraft"
    },
    {
        "utterance": "what type of aircraft is used on the first flight from philadelphia to dallas in the morning",
        "slots": "O O O O O O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "aircraft"
    },
    {
        "utterance": "i would like information on flights from oakland california to dallas leaving on sunday morning",
        "slots": "O O O O O O O B-fromloc.city_name B-fromloc.state_name O B-toloc.city_name O O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what is the meaning of fare code qx and qw",
        "slots": "O O O O O O O B-fare_basis_code O B-fare_basis_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "what flights go from dallas to san francisco before 6 o'clock sunday afternoon",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what are the least expensive flights from denver to atlanta",
        "slots": "O O O B-cost_relative I-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from baltimore to philadelphia please",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "list all the flights that depart from general mitchell international",
        "slots": "O O O O O O O B-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "all flights from baltimore to philadelphia less than 1000 dollars",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name B-cost_relative O B-fare_amount I-fare_amount",
        "intent": "flight"
    },
    {
        "utterance": "i would like to see all flights from denver to philadelphia",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is there a flight in the afternoon from philadelphia that arrives in the evening in denver",
        "slots": "O O O O O O B-depart_time.period_of_day O B-fromloc.city_name O O O O B-arrive_time.period_of_day O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from oakland to philadelphia on saturday which serve a meal and arrive in philadelphia before noon",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O O O B-meal O O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "flights from newark to cleveland daily",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name B-flight_days",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from atlanta to philadelphia and i 'm looking for the cheapest fare",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O O O O B-cost_relative O",
        "intent": "flight"
    },
    {
        "utterance": "list flights from detroit to san diego on thursday",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "round trip fares from baltimore to philadelphia under 1000 dollars",
        "slots": "B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name B-cost_relative B-fare_amount I-fare_amount",
        "intent": "airfare"
    },
    {
        "utterance": "what is the cheapest fare one way between pittsburgh and denver",
        "slots": "O O O B-cost_relative O B-round_trip I-round_trip O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what are the afternoon flights for denver to san francisco",
        "slots": "O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what does the fare code qw mean",
        "slots": "O O O O O B-fare_basis_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "what ground transportation is available in boston",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what cities does continental service",
        "slots": "O O O B-airline_name O",
        "intent": "city"
    },
    {
        "utterance": "show me all flights from san diego to dulles on boeing 767",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.airport_name O O B-aircraft_code",
        "intent": "flight"
    },
    {
        "utterance": "give me flights that arrive in baltimore from atlanta denver and pittsburgh",
        "slots": "O O O O O O B-toloc.city_name O B-fromloc.city_name B-fromloc.city_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "shortest flights from nashville to st. petersburg",
        "slots": "B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from pittsburgh to san francisco on sunday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "which flights are between boston and baltimore washington",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the first class and coach fares for flights from chicago to kansas city arriving around 7 pm next thursday",
        "slots": "O O O B-class_type I-class_type O B-class_type O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time B-arrive_date.date_relative B-arrive_date.day_name",
        "intent": "airfare"
    },
    {
        "utterance": "list all flights on continental leaving seattle on sunday after 430 pm",
        "slots": "O O O O B-airline_name O B-fromloc.city_name O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like a nonstop flight from atlanta to baltimore that gets in around 7 pm",
        "slots": "O O O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name O O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what does it cost to fly from boston to oakland on united airlines",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "airfare"
    },
    {
        "utterance": "i 'd like to find a us air flight from orlando to cleveland that arrives around 10 o'clock in the evening",
        "slots": "O O O O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time O O B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what 's the earliest flight i can get between boston and dallas",
        "slots": "O O O B-flight_mod O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the least expensive flight available from dallas fort worth to san francisco",
        "slots": "O O O B-cost_relative I-cost_relative O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there from houston to dallas",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "are there any flights from denver to atlanta which connect in pittsburgh",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-connect O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "okay can you tell me the flight cost between denver and atlanta",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "on tuesday i 'd like to fly from detroit to st. petersburg",
        "slots": "O B-depart_date.day_name O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight from boston to san francisco",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'm interested in flying from boston to atlanta",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the cities served by nationair",
        "slots": "O O O O O O B-airline_name",
        "intent": "city"
    },
    {
        "utterance": "ground transport phoenix",
        "slots": "O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "may i have a listing of flights from minneapolis to long beach california on wednesday",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-toloc.state_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "is there a round trip flight from baltimore to dallas connecting in denver",
        "slots": "O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name B-connect O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is there ground transportation available in denver",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "which airlines fly between boston and pittsburgh",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "show me the flights from boston to san francisco that stop in dallas",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the flights and departure times for flights leaving dallas fort worth for boston after 6 pm",
        "slots": "O O O O B-flight_time I-flight_time O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i would like to see the flights from baltimore to philadelphia please",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from baltimore to oakland",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights between new york and miami",
        "slots": "O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to go from boston to san francisco with a stop in dallas",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "airlines that fly to miami from new york on friday",
        "slots": "O O O O B-toloc.city_name O B-fromloc.city_name I-fromloc.city_name O B-depart_date.day_name",
        "intent": "airline"
    },
    {
        "utterance": "flights from montreal",
        "slots": "O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the afternoon flights from atlanta to baltimore",
        "slots": "O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from denver to philadelphia",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from cleveland to miami",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available wednesday afternoon from denver to san francisco",
        "slots": "O O O O B-depart_date.day_name B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "are there any early flights from atlanta to washington on thursday mornings",
        "slots": "O O O B-depart_time.period_mod O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i would like to book a flight from baltimore to newark early in the morning on april ninth",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.period_mod O O B-depart_time.period_of_day O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what are the united airlines flights between baltimore and denver on august twelfth",
        "slots": "O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "do you have a flight from boston to san francisco with a stopover in fort worth dallas",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name I-stoploc.city_name B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's fare code yn",
        "slots": "O O O O B-fare_basis_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "list the morning flights between atlanta and dallas",
        "slots": "O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "all flights and fares from atlanta to dallas round trip after 12 pm less than 1100 dollars",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip B-depart_time.time_relative B-depart_time.time I-depart_time.time B-cost_relative O B-fare_amount I-fare_amount",
        "intent": "flight+airfare"
    },
    {
        "utterance": "what airline stands for hp",
        "slots": "O O O O B-airline_code",
        "intent": "airline"
    },
    {
        "utterance": "please show me the return flights from miami to new york",
        "slots": "O O O O B-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show all flights on lufthansa airlines out of boston",
        "slots": "O O O O B-airline_name I-airline_name O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "hi i 'd like to fly from columbus to phoenix and make a stop in cincinnati along the way",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O O B-stoploc.city_name O O O",
        "intent": "flight"
    },
    {
        "utterance": "do you have a flight from atlanta to boston that will stop in washington",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the cheapest round trip flights from orlando to kansas city",
        "slots": "O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "ground transportation in oakland",
        "slots": "O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what is the latest flight between washington and boston",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to make a round trip flight from washington to san francisco and return",
        "slots": "O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O",
        "intent": "flight"
    },
    {
        "utterance": "please list the twa flights from las vegas to new york and fare",
        "slots": "O O O B-airline_code O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O",
        "intent": "flight"
    },
    {
        "utterance": "which flight between pittsburgh and baltimore on july nineteenth has the smallest seating capacity",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number O O B-mod O O",
        "intent": "flight"
    },
    {
        "utterance": "sfo to denver on monday november eleventh 1991",
        "slots": "B-fromloc.airport_code O B-toloc.city_name O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number B-depart_date.year",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from charlotte to newark leaving today evening",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.today_relative B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what are the classes of service for continental airlines",
        "slots": "O O O O O O O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the ground transportation available in denver",
        "slots": "O O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "can you tell me about flights from san jose to nashville on saturday afternoon",
        "slots": "O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "houston airports",
        "slots": "B-city_name O",
        "intent": "airport"
    },
    {
        "utterance": "show me all the information about the flight from baltimore to dallas which is listed dl 1055 dl 405",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-airline_code B-flight_number B-airline_code B-flight_number",
        "intent": "flight"
    },
    {
        "utterance": "i want a flight on continental from boston to san francisco",
        "slots": "O O O O O B-airline_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the evening flights from philadelphia to baltimore",
        "slots": "O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from san diego to newark new jersey",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-toloc.state_name I-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "show me a list of flights from boston to dc arriving before 9 am on july twenty second",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.state_code O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time O B-arrive_date.month_name B-arrive_date.day_number I-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "give me flights from atlanta to baltimore",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to see the flights from denver to philadelphia please",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "show me ground transportation for boston",
        "slots": "O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i want to fly denver to pittsburgh",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to fly from denver to pittsburgh",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the delta flights from dallas to boston",
        "slots": "O O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the aircraft type with the greatest seating capacity",
        "slots": "O O O O O O O B-mod O O",
        "intent": "aircraft"
    },
    {
        "utterance": "denver to san francisco wednesday",
        "slots": "B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what time does the flight leave denver going to san francisco on continental airlines",
        "slots": "O B-flight_time O O O O B-fromloc.city_name O O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight_time"
    },
    {
        "utterance": "can you show me one way economy fares from dallas to atlanta",
        "slots": "O O O O B-round_trip I-round_trip B-economy O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "which airlines have first class flights today",
        "slots": "O O O B-class_type I-class_type O B-depart_date.today_relative",
        "intent": "airline"
    },
    {
        "utterance": "wednesday morning flights between baltimore and newark",
        "slots": "B-depart_date.day_name B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights between boston and philadelphia that arrive after 2 o'clock and before 5 o'clock on tuesday",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "give me a flight from philadelphia to denver on sunday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights from boston to san francisco with the maximum number of stops",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-flight_stop I-flight_stop I-flight_stop I-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "what is the first flight from boston to atlanta",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from philadelphia to oakland on friday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from los angeles to pittsburgh for tuesday",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "give me flights from baltimore to denver on united that offer first class",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name O O B-class_type I-class_type",
        "intent": "flight"
    },
    {
        "utterance": "information on flights from baltimore to philadelphia",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there from dallas to pittsburgh on monday morning",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what is the schedule of ground transportation from the airport in philadelphia into downtown",
        "slots": "O O O B-flight_time O O O O O O O B-fromloc.city_name O O",
        "intent": "ground_service"
    },
    {
        "utterance": "show me the flights from toronto to cincinnati",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are all the flights available between pittsburgh and dallas fort worth",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show all airlines with flights between denver and dallas",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "thank you for that information now i would like information on a flight on april sixteen from atlanta to philadelphia early in the morning",
        "slots": "O O O O O O O O O O O O O O B-depart_date.month_name B-depart_date.day_number O B-fromloc.city_name O B-toloc.city_name B-depart_time.period_mod O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what does mco stand for",
        "slots": "O O B-airport_code O O",
        "intent": "abbreviation"
    },
    {
        "utterance": "i need ground transportation in dallas please show me what 's available",
        "slots": "O O O O O B-city_name O O O O O O",
        "intent": "ground_service"
    },
    {
        "utterance": "what flights are there from charlotte to baltimore",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the lowest one way fare from pittsburgh to denver",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i 'd like to book a flight from san diego to toronto",
        "slots": "O O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "hi i want a round trip ticket to dallas",
        "slots": "O O O O B-round_trip I-round_trip O O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i need a flight from pittsburgh to los angeles thursday evening",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available from dallas fort worth to atlanta",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the latest flight available between san francisco and boston",
        "slots": "O O O B-flight_mod O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like the cheapest one way fare from dallas to denver",
        "slots": "O O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "well i 'll try last time tell me the kind of aircraft united airlines flies from denver to san francisco before 10 o'clock in the morning",
        "slots": "O O O O O O O O O O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O O B-depart_time.period_of_day",
        "intent": "aircraft"
    },
    {
        "utterance": "what are the lowest one way fares from atlanta to denver",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what flights do you have from ontario",
        "slots": "O O O O O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "find a flight on american airlines from boston to san francisco that makes a stopover in denver",
        "slots": "O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from atlanta to washington please",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "which airline is the cheapest to fly from dallas to baltimore on december twenty fourth",
        "slots": "O O O O B-cost_relative O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "airline"
    },
    {
        "utterance": "how far is downtown from the airport in dallas",
        "slots": "O O O O O O O O B-fromloc.city_name",
        "intent": "distance"
    },
    {
        "utterance": "show me round trip fares between san francisco and washington dc",
        "slots": "O O B-round_trip I-round_trip O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-toloc.state_code",
        "intent": "airfare"
    },
    {
        "utterance": "i need an early flight from dallas to houston",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "nonstop flights seattle to kansas city",
        "slots": "B-flight_stop O B-toloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what round trip tickets are there from cleveland to miami on us air that arrive before 4 pm",
        "slots": "O B-round_trip I-round_trip O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "airfare"
    },
    {
        "utterance": "show me the latest flight from san francisco to denver",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me which flights from san francisco to pittsburgh on a monday are first class",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name O B-class_type I-class_type",
        "intent": "flight"
    },
    {
        "utterance": "does delta fly from atlanta to san francisco",
        "slots": "O B-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list aircraft types that fly between boston and san francisco",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "aircraft"
    },
    {
        "utterance": "show me the flight classes for delta airlines",
        "slots": "O O O O O O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "on monday i 'd like to travel from las vegas to detroit michigan",
        "slots": "O B-depart_date.day_name O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the cheapest round trip fare between boston and washington",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "display flights from dallas to atlanta which depart between 2 pm and 6 pm",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O O O B-depart_time.start_time I-depart_time.start_time O B-depart_time.end_time I-depart_time.end_time",
        "intent": "flight"
    },
    {
        "utterance": "what flights leave philadelphia for dallas and depart before noon on american airlines",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.time_relative B-depart_time.time O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from newark to cleveland 5 o'clock pm daily",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time I-depart_time.time I-depart_time.time B-flight_days",
        "intent": "flight"
    },
    {
        "utterance": "what is ewr",
        "slots": "O O B-airport_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "show me flights from san francisco to seattle",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flight is available at noontime from boston to washington what flight is available around noontime from boston to washington",
        "slots": "O O O O O B-depart_time.time O B-fromloc.city_name O B-toloc.city_name O O O O B-depart_time.time_relative B-depart_time.time O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "are there any flights from atlanta to denver",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like a flight leaving atlanta august seventh and arriving in denver colorado august seventh leaving in the afternoon",
        "slots": "O O O O O O B-fromloc.city_name B-depart_date.month_name B-depart_date.day_number O O O B-toloc.city_name B-toloc.state_name B-arrive_date.month_name B-arrive_date.day_number O O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i would like to fly from atlanta to san francisco with a stopover in dallas",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from boston to philadelphia on a monday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights next tuesday between philadelphia and san francisco",
        "slots": "O O O O B-depart_date.date_relative B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all the flights from denver to las vegas",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flight from dc to salt lake city",
        "slots": "O O B-fromloc.state_code O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the different classes of service and the prices for us air",
        "slots": "O O O O O O O O O O O B-airline_name I-airline_name",
        "intent": "airfare"
    },
    {
        "utterance": "what 's the first flight from boston to san francisco",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from philadelphia to dallas on october first 1991",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number B-depart_date.year",
        "intent": "flight"
    },
    {
        "utterance": "do you have a flight from salt lake city to st. petersburg",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to fly from denver to boston",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me fares less than 400 dollars for flights from dallas to baltimore",
        "slots": "O O O B-cost_relative O B-fare_amount I-fare_amount O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "tell me about twa flight 539",
        "slots": "O O O B-airline_code O B-flight_number",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available from san francisco to pittsburgh on monday morning",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights for united airlines on september twentieth in the morning",
        "slots": "O O O O O B-airline_name I-airline_name O B-depart_date.month_name B-depart_date.day_number O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i need information for flights leaving baltimore and arriving in atlanta",
        "slots": "O O O O O O B-fromloc.city_name O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "can you tell me the cheapest flight between boston and san francisco",
        "slots": "O O O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to make a trip between atlanta and boston i wish to know the cheapest fare",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O O B-cost_relative O",
        "intent": "flight"
    },
    {
        "utterance": "do any of the san francisco to boston flights leave on friday",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to see flights from baltimore to atlanta that arrive before noon and i 'd like to see flights from denver to atlanta that arrive before noon",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_time.time_relative B-arrive_time.time O O O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i would like to plan a flight on american airlines from boston to denver",
        "slots": "O O O O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "newark to minneapolis on sunday",
        "slots": "B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "please tell me the flights between boston and philadelphia next thursday",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.date_relative B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "please show me airlines with flight service from boston to denver from denver to philadelphia and from philadelphia to boston",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-fromloc.city_name O B-toloc.city_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "what time are the flights leaving from denver to pittsburgh on july seventh",
        "slots": "O B-flight_time O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight_time"
    },
    {
        "utterance": "show me flights from pittsburgh to dc",
        "slots": "O O O O B-fromloc.city_name O B-toloc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "what is mco",
        "slots": "O O B-airport_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "what is the cheapest one way flight from atlanta to boston",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want a flight from san diego to indianapolis that leaves tuesday afternoon",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me the cheapest one way fares from san diego to miami",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what flights leave baltimore for boston after 6 o'clock on friday",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from boston to san francisco",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how far is it from salt lake city airport to salt lake city",
        "slots": "O O O O O B-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "distance"
    },
    {
        "utterance": "do the airlines still offer first class",
        "slots": "O O O O O B-class_type I-class_type",
        "intent": "airline"
    },
    {
        "utterance": "i need ground transportation in seattle",
        "slots": "O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i want a flight from pittsburgh to los angeles that departs after 6 pm on thursday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "list daily flights from boston to atlanta",
        "slots": "O B-flight_days O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like information information on flights from san francisco to denver on thursday morning",
        "slots": "O O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what is the yn code",
        "slots": "O O O B-fare_basis_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "what is the cheapest fare that i can get between philadelphia and san francisco",
        "slots": "O O O B-cost_relative O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i need to fly from boston to denver on to san francisco and back",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-toloc.city_name I-toloc.city_name O O",
        "intent": "flight"
    },
    {
        "utterance": "what are all the available meals",
        "slots": "O O O O O B-meal",
        "intent": "meal"
    },
    {
        "utterance": "what flights are there from denver to atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "do you have a flight on wednesday from denver to washington dc nonstop",
        "slots": "O O O O O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code B-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "give me the list of flights for continental between denver and boston",
        "slots": "O O O O O O O B-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "round trip fares from baltimore to philadelphia less than 1000 dollars round trip fares from denver to philadelphia less than 1000 dollars round trip fares from pittsburgh to philadelphia less than 1000 dollars",
        "slots": "B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name B-cost_relative O B-fare_amount I-fare_amount B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name B-cost_relative O B-fare_amount I-fare_amount B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name B-cost_relative O B-fare_amount I-fare_amount",
        "intent": "airfare"
    },
    {
        "utterance": "list all flights from baltimore to atlanta after 12 noon thursday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show ground transportation for pittsburgh",
        "slots": "O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what flights go from boston to atlanta",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what airlines have flights from baltimore to seattle",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "show me the flights from baltimore to oakland please",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from charlotte to philadelphia",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from san jose to dallas on friday afternoon",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from boston to pittsburgh that leaves early in the morning",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_mod O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest round trip fare from atlanta to pittsburgh",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i would like to find out the ground travel available in atlanta",
        "slots": "O O O O O O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "give me all flights from new york city to las vegas that arrive on a sunday",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the airlines from love field",
        "slots": "O O O O O B-fromloc.airport_name I-fromloc.airport_name",
        "intent": "airline"
    },
    {
        "utterance": "newark to cleveland",
        "slots": "B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to go from boston to san francisco",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "on the earliest flight from san francisco to atlanta on delta is a meal being served",
        "slots": "O O B-flight_mod O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-airline_name O O B-meal O O",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight tomorrow from atlanta to baltimore",
        "slots": "O O O O B-depart_date.today_relative O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "now i 'd like to see flights from detroit to st. petersburg on the next tuesday",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_date.date_relative B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "code ff",
        "slots": "O B-airline_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "okay i need to get a flight from houston to seattle",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "looking for a flight from denver to salt lake city",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list the wednesday american airline flights from milwaukee to san jose",
        "slots": "O O O B-depart_date.day_name B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a reservation from baltimore to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what does fare code qo mean",
        "slots": "O O O O B-fare_basis_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "what flights from new york to los angeles",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from boston to pittsburgh on wednesday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "are there any flights from philadelphia to dallas which stop in atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from ontario to tacoma one way",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight from atlanta to dallas on friday that arrives in dallas by 6 pm",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i would like to see information for flights from san francisco leaving after 12 pm to pittsburgh on monday",
        "slots": "O O O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "which flights are serviced by american airlines",
        "slots": "O O O O O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the car rentals in baltimore",
        "slots": "O O O B-transport_type I-transport_type O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "round trip flights between new york and miami",
        "slots": "B-round_trip I-round_trip O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the least expensive flight from miami to cleveland on sunday after noon",
        "slots": "O O O B-cost_relative I-cost_relative O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from pittsburgh to philadelphia",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from boston to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me a list of flights between pittsburgh and baltimore",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the total number of flights between all airports by delta",
        "slots": "O O O O O O O O O O B-airline_name",
        "intent": "quantity"
    },
    {
        "utterance": "flights from newark new jersey to cleveland",
        "slots": "O O B-fromloc.city_name B-fromloc.state_name I-fromloc.state_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show flights from denver to oakland arriving between 12 and 1 o'clock",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_time.start_time O B-arrive_time.end_time I-arrive_time.end_time",
        "intent": "flight"
    },
    {
        "utterance": "what is the thrift economy flight fare from washington to san francisco",
        "slots": "O O O B-class_type B-economy O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "please show me airfare of flight us 345 from boston to pittsburgh",
        "slots": "O O O O O O B-airline_code B-flight_number O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i 'm looking for a flight leaving denver traveling to atlanta and stopping at pittsburgh is this possible",
        "slots": "O O O O O O O B-fromloc.city_name O O B-toloc.city_name O O O B-stoploc.city_name O O O",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from new york to milwaukee on northwest airlines departing at 720 am",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name O O B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "could you list for me the flights that leave oakland on sunday and arrive in dallas",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-depart_date.day_name O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "yes i 'm looking for a flight between oakland and boston with a stopover in dallas fort worth do you have one of those",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name I-stoploc.city_name I-stoploc.city_name O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "and flights leaving from atlanta to oakland leaving after 5 pm",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show all flights from pittsburgh to oakland",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from dallas to atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is there a flight on eastern airlines from boston to denver",
        "slots": "O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from pittsburgh to boston on wednesday the fourteenth",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me the fares from washington to oakland",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what is the available ground transportation between san francisco and downtown",
        "slots": "O O O O O O O B-fromloc.city_name I-fromloc.city_name O O",
        "intent": "ground_service"
    },
    {
        "utterance": "can i go from boston to san francisco with a stopover in denver",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from boston to denver",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what does code y stand for",
        "slots": "O O O B-fare_basis_code O O",
        "intent": "abbreviation"
    },
    {
        "utterance": "what flights go from san francisco to boston and leave after 1 o'clock",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i would like an american flight from toronto to san diego with a stopover in denver please",
        "slots": "O O O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "please tell me the times of the flights between boston and baltimore",
        "slots": "O O O O B-flight_time O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight_time"
    },
    {
        "utterance": "list flights from denver to baltimore",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please show me airlines with flights from denver to boston with stop in philadelphia",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-stoploc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "all right what do you have from oakland to philadelphia on wednesday",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the capacity of an f28",
        "slots": "O O O O O O B-aircraft_code",
        "intent": "capacity"
    },
    {
        "utterance": "what is the smallest aircraft available to fly on from pittsburgh to baltimore",
        "slots": "O O O B-mod O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "aircraft"
    },
    {
        "utterance": "show me the flights arriving in baltimore on june fifteenth leaving either from denver or dallas",
        "slots": "O O O O O O B-toloc.city_name O B-arrive_date.month_name B-arrive_date.day_number O O O B-fromloc.city_name B-or B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please give ground transportation at denver airport",
        "slots": "O O O O O B-airport_name I-airport_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i 'm looking for ground transportation in dallas",
        "slots": "O O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "name the earliest flight from boston to san francisco",
        "slots": "O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the first class fare from boston to dallas",
        "slots": "O O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i 'd like to have some information on a ticket from denver to pittsburgh and atlanta",
        "slots": "O O O O O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me the flights from cincinnati to denver",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there from new york to las vegas",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me the flights from milwaukee to st. louis leaving sunday morning",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "please show me flights from dallas to denver",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there from milwaukee to phoenix on saturday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "please list the friday night flights from st. paul to kansas city",
        "slots": "O O O B-depart_date.day_name B-depart_time.period_of_day O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is mco",
        "slots": "O O B-airport_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "what does the fare code qx mean",
        "slots": "O O O O O B-fare_basis_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "what is the earliest flight from boston to oakland that serves a meal",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O O O B-meal",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight from washington to boston leaving at 230 on august twentieth",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.time O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "i would like to see the flights from baltimore to philadelphia",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the shortest flight from boston to denver which arrives in denver wednesday before noon",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O O O B-toloc.city_name B-arrive_date.day_name B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me the us air flights from atlanta to boston",
        "slots": "O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from nashville to orlando daily",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name B-flight_days",
        "intent": "flight"
    },
    {
        "utterance": "list all flights from minneapolis to long beach on saturday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "flights between tampa and st. louis",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from san diego to new york using dc10",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-aircraft_code",
        "intent": "flight"
    },
    {
        "utterance": "please show me flights from atlanta to oakland california on thursday after 1600 hours",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_name O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "how many flights come from denver to baltimore on july nineteenth",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "quantity"
    },
    {
        "utterance": "show me flights from boston to denver on tuesday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "are there any flights from boston to san francisco which stop in denver",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from baltimore to boston",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the ground transportation in san diego",
        "slots": "O O O O O O B-city_name I-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "find me the earliest flight from boston to atlanta",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list flights from pittsburgh to boston leaving after 3 in the afternoon",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.time_relative B-depart_time.time O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight from boston to dallas fort worth leaving august eighth",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "i need your help with information on ground transportation from the airport in philadelphia to downtown",
        "slots": "O O O O O O O O O O O O O B-fromloc.city_name O O",
        "intent": "ground_service"
    },
    {
        "utterance": "what is the earliest flight from boston to washington",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "can you show me economy class one way fares for flights from oakland to dallas on december sixteenth",
        "slots": "O O O O B-economy I-economy B-round_trip I-round_trip O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "airfare"
    },
    {
        "utterance": "what flights from atlanta to washington",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "does united airlines fly from denver to baltimore",
        "slots": "O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available from pittsburgh to boston on wednesday of next week",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-depart_date.date_relative O",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from boston to pittsburgh on wednesday after 6 o'clock pm",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time I-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what ground transportation is available in san francisco",
        "slots": "O O O O O O B-city_name I-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i 'm requesting flight information on a flight from denver to san francisco on wednesday",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "where is general mitchell international located",
        "slots": "O O B-airport_name I-airport_name I-airport_name O",
        "intent": "city"
    },
    {
        "utterance": "what is the earliest flight leaving boston and going to washington on september third",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O O O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from san diego to washington dc",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-toloc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "show me round trip fares from denver to philadelphia",
        "slots": "O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "flight numbers from columbus to minneapolis tomorrow",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.today_relative",
        "intent": "flight_no"
    },
    {
        "utterance": "what flights go from boston to atlanta next tuesday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.date_relative B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "may i please see airlines and flight numbers from new york to toronto on the same date june seventeenth also arriving in toronto before noon thank you",
        "slots": "O O O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_date.date_relative O B-depart_date.month_name B-depart_date.day_number O O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time O O",
        "intent": "airline+flight_no"
    },
    {
        "utterance": "rental car in baltimore",
        "slots": "B-transport_type I-transport_type O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "flight will start from boston",
        "slots": "O O O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from atlanta to dallas round trip less than 1100 dollars",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip B-cost_relative O B-fare_amount I-fare_amount",
        "intent": "flight"
    },
    {
        "utterance": "i would like your rates between atlanta and boston on september third",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "airfare"
    },
    {
        "utterance": "what do these cost",
        "slots": "O O O O",
        "intent": "airfare"
    },
    {
        "utterance": "can you show me the available flights from baltimore to dallas with economy fares",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-economy O",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight from memphis to cincinnati on june thirtieth",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from dallas to boston for tomorrow night or evening",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.today_relative B-depart_time.period_of_day B-or B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "chicago to san francisco on continental",
        "slots": "B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from boston to baltimore",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to fly from dallas to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "oakland to philadelphia saturday",
        "slots": "B-fromloc.city_name O B-toloc.city_name B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the lowest round trip fare from atlanta to bwi",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.airport_code",
        "intent": "airfare"
    },
    {
        "utterance": "what is the latest flight leaving washington for denver",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'm going to leave philadelphia and i want to go to san francisco and i want to fly first class american and i want a stop in dallas can you please tell me what type of aircraft you will be flying",
        "slots": "O O O O O B-fromloc.city_name O O O O O O B-toloc.city_name I-toloc.city_name O O O O O B-class_type I-class_type B-airline_name O O O O O O B-stoploc.city_name O O O O O O O O O O O O O",
        "intent": "aircraft"
    },
    {
        "utterance": "do you have one to denver from philadelphia",
        "slots": "O O O O O B-toloc.city_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the ground transportation to westchester county",
        "slots": "O O O O O O B-city_name I-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what am flights are available from pittsburgh to boston",
        "slots": "O B-depart_time.period_of_day O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights on sunday from tampa to charlotte",
        "slots": "O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me fares from baltimore to philadelphia",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "do you have a flight leaving boston at 645 am going to washington",
        "slots": "O O O O O O B-fromloc.city_name O B-depart_time.time I-depart_time.time O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "cheapest round trip airfare from tacoma to orlando",
        "slots": "B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "and how can i get to the boston airport from downtown boston",
        "slots": "O O O O O O O B-toloc.airport_name I-toloc.airport_name O O B-fromloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show me american flights from dallas to san francisco",
        "slots": "O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what types of aircraft does delta fly",
        "slots": "O O O O O B-airline_name O",
        "intent": "aircraft"
    },
    {
        "utterance": "what is airline nw",
        "slots": "O O O B-airline_code",
        "intent": "airline"
    },
    {
        "utterance": "what stops does dl 838 make from san francisco to atlanta",
        "slots": "O B-flight_stop O B-airline_code B-flight_number O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what does the abbreviation dl mean",
        "slots": "O O O O B-airline_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "flights from phoenix to las vegas",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "find the cheapest one way fare from boston to san francisco",
        "slots": "O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i would like a list of the round trip flights between indianapolis and orlando on the twenty seventh or the twenty eighth of december",
        "slots": "O O O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_number I-depart_date.day_number B-or O B-depart_date.day_number I-depart_date.day_number O B-depart_date.month_name",
        "intent": "flight"
    },
    {
        "utterance": "list the flights from denver to baltimore",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from baltimore to philadelphia arriving after 2100",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "flights from kansas city to cleveland",
        "slots": "O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from newark new jersey to minneapolis",
        "slots": "O O B-fromloc.city_name B-fromloc.state_name I-fromloc.state_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please give me the cheapest flight from denver to pittsburgh",
        "slots": "O O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the latest flight from san francisco to atlanta",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "from philadelphia to toronto",
        "slots": "O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "on united airlines give me the flight times from boston to dallas",
        "slots": "O B-airline_name I-airline_name O O O B-flight_time I-flight_time O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight_time"
    },
    {
        "utterance": "what does ff mean",
        "slots": "O O B-airline_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "find a flight from charlotte to las vegas that stop in st. louis that serve dinner and i want to find the airline for this flight",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-stoploc.city_name I-stoploc.city_name O O B-meal_description O O O O O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "on continental airlines any class service from san francisco to pittsburgh",
        "slots": "O B-airline_name I-airline_name O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me one more time the first class fares from baltimore to dallas",
        "slots": "O O O O O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "flights from pittsburgh to baltimore between 10 am and 2 pm",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.start_time I-depart_time.start_time O B-depart_time.end_time I-depart_time.end_time",
        "intent": "flight"
    },
    {
        "utterance": "is there a flight tomorrow morning from columbus to nashville",
        "slots": "O O O O B-depart_date.today_relative B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is restriction ap80",
        "slots": "O O O B-restriction_code",
        "intent": "restriction"
    },
    {
        "utterance": "i need a flight from newark to los angeles leaving tomorrow evening",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.today_relative B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from denver to philadelphia",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a return flight from chicago to kansas city leaving chicago around 7 in the evening next thursday",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time O O B-depart_time.period_of_day B-depart_date.date_relative B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "all flights and fares from dallas",
        "slots": "O O O O O B-fromloc.city_name",
        "intent": "flight+airfare"
    },
    {
        "utterance": "show me the round trip tickets from baltimore to dallas",
        "slots": "O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "give me the round trip coach fare from dallas to baltimore",
        "slots": "O O O B-round_trip I-round_trip B-class_type O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what are the flights that leave detroit and arrive in chicago around 7 pm next wednesday",
        "slots": "O O O O O O B-fromloc.city_name O O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time B-arrive_date.date_relative B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the early weekday flights from san francisco to pittsburgh",
        "slots": "O O O B-flight_mod O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights from boston to atlanta after 6 o'clock pm on wednesday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time I-depart_time.time O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what does iah mean",
        "slots": "O O B-airport_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "what flights do you have in the morning of september twentieth on united airlines from pittsburgh to san francisco and a stopover in denver",
        "slots": "O O O O O O O B-depart_time.period_of_day O B-depart_date.month_name B-depart_date.day_number O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flight on monday from philadelphia to oakland california early morning",
        "slots": "O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name B-toloc.state_name B-depart_time.period_of_day B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "list possible round trip daily flights between boston and oakland",
        "slots": "O O B-round_trip I-round_trip B-flight_days O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how much is a first class round trip from atlanta to san francisco",
        "slots": "O O O O B-class_type I-class_type B-round_trip I-round_trip O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "in denver what kind of ground transportation is there from the airport to downtown",
        "slots": "O B-city_name O O O O O O O O O O O O",
        "intent": "ground_service"
    },
    {
        "utterance": "atlanta to pittsburgh july twenty third",
        "slots": "B-fromloc.city_name O B-toloc.city_name B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "i need to know if there are any direct flights from st. petersburg florida to tacoma washington leaving preferably tomorrow morning",
        "slots": "O O O O O O O O B-connect O O B-fromloc.city_name I-fromloc.city_name B-fromloc.state_name O B-toloc.city_name B-toloc.state_name O O B-depart_date.today_relative B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "hello i 'd like a delta flight from atlanta to boston",
        "slots": "O O O O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all the flights from atlanta to charlotte north carolina that leave next monday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_name I-toloc.state_name O O B-depart_date.date_relative B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest flight on american airlines from cleveland to miami",
        "slots": "O O O B-cost_relative O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight between denver and san francisco leaving from denver in the afternoon and arriving at 5 pm",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-fromloc.city_name O O B-depart_time.period_of_day O O O B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i would like some information on a flight from denver to san francisco on united airlines",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from san francisco august one",
        "slots": "O O B-fromloc.city_name I-fromloc.city_name B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "all flights and fares from atlanta to dallas round trip after 12 pm less than 1100 dollars",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip B-depart_time.time_relative B-depart_time.time I-depart_time.time B-cost_relative O B-fare_amount I-fare_amount",
        "intent": "flight+airfare"
    },
    {
        "utterance": "show me economy fares from dallas to baltimore",
        "slots": "O O B-economy O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what flights leave after 7 pm from pittsburgh to philadelphia",
        "slots": "O O O B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "wednesday from baltimore to newark",
        "slots": "B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the latest flight from san jose to houston",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to fly from kansas city to chicago next wednesday arriving in the evening and returning the next day",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-depart_date.date_relative B-depart_date.day_name O O O B-arrive_time.period_of_day O O O B-return_date.date_relative O",
        "intent": "flight"
    },
    {
        "utterance": "price of flight from cleveland to nashville",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what 're the cheapest nonstop flights from new york to miami one way",
        "slots": "O O O B-cost_relative B-flight_stop O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights that go from atlanta to washington on thursday mornings",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show last flight from philadelphia to boston",
        "slots": "O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to book a flight for may twenty sixth going from tampa to milwaukee a direct flight if possible",
        "slots": "O O O O O O O O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O O B-fromloc.city_name O B-toloc.city_name O B-connect O O O",
        "intent": "flight"
    },
    {
        "utterance": "what is the fare on the first flight from atlanta to denver on thursday morning",
        "slots": "O O O O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "airfare"
    },
    {
        "utterance": "i 'd like the cheapest cost fare to fort worth from boston",
        "slots": "O O O O B-cost_relative O O O B-toloc.city_name I-toloc.city_name O B-fromloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i 'm trying to find a flight from kansas city to burbank on saturday the twenty second",
        "slots": "O O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what flights do you have from milwaukee to tampa",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to book a flight on us air first class from cleveland to miami on february twenty fourth",
        "slots": "O O O O O O O O B-airline_name I-airline_name B-class_type I-class_type O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "from montreal to las vegas",
        "slots": "O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to find the first flight from baltimore to boston that serves a meal",
        "slots": "O O O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O O O B-meal",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from boston to san francisco stopping in dallas on american airlines",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-stoploc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like a flight tomorrow from columbus to houston with a stopover in nashville",
        "slots": "O O O O O B-depart_date.today_relative O B-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like a flight from montreal to san diego for sunday",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "airports in new york",
        "slots": "O O B-city_name I-city_name",
        "intent": "airport"
    },
    {
        "utterance": "find me a flight from atlanta to baltimore",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from san francisco to washington dc area",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-toloc.state_code O",
        "intent": "flight"
    },
    {
        "utterance": "what is the latest flight leaving las vegas for ontario",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from tampa to cincinnati",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from denver that go to pittsburgh and then atlanta",
        "slots": "O O O O O B-fromloc.city_name O O O B-toloc.city_name O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from philadelphia to denver on a monday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like the cheapest flight from pittsburgh to atlanta leaving april twenty fifth and returning may sixth",
        "slots": "O O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O O B-return_date.month_name B-return_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "i would like to fly from denver to atlanta by way of pittsburgh",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from pittsburgh to baltimore between 10 am and 2 pm",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.start_time I-depart_time.start_time O B-depart_time.end_time I-depart_time.end_time",
        "intent": "flight"
    },
    {
        "utterance": "i would like to fly to san francisco early in the day",
        "slots": "O O O O O O B-toloc.city_name I-toloc.city_name B-depart_time.period_mod O O O",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from san diego to phoenix on a boeing 737",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O B-aircraft_code",
        "intent": "flight"
    },
    {
        "utterance": "i need to go to san diego from toronto but i want to stopover in denver",
        "slots": "O O O O O B-toloc.city_name I-toloc.city_name O B-fromloc.city_name O O O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from san diego to newark",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from oakland to denver",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "can i get a taxi from long beach airport to downtown long beach",
        "slots": "O O O O B-transport_type O B-fromloc.city_name I-fromloc.city_name O O O B-fromloc.city_name I-fromloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "from baltimore to san francisco",
        "slots": "O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to see the flights from pittsburgh to philadelphia",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is there a flight leaving from boston to atlanta",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a thursday flight from pittsburgh to baltimore arriving in baltimore before 9 o'clock",
        "slots": "O O O B-depart_date.day_name O O B-fromloc.city_name O B-toloc.city_name O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "flights from phoenix to milwaukee on wednesday evening",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i would like a morning flight from milwaukee to denver colorado please",
        "slots": "O O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_name O",
        "intent": "flight"
    },
    {
        "utterance": "what does ewr mean",
        "slots": "O O B-airport_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "does delta have an early afternoon flight from boston to san francisco",
        "slots": "O B-airline_name O O B-depart_time.period_of_day B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "fares between atlanta and boston",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me flights with first class reservations from san francisco to pittsburgh for monday",
        "slots": "O O O O B-class_type I-class_type O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from dallas to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the cheapest flights from baltimore to dallas",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from boston to pittsburgh on thursday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "also give me a list of flights between oakland and boston",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from nashville to tacoma on tuesday the eighteenth of may",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-depart_date.day_number O B-depart_date.month_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the coach fares from la to charlotte monday morning",
        "slots": "O O O B-class_type O O B-fromloc.city_name O B-toloc.city_name B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "airfare"
    },
    {
        "utterance": "i would like to fly from boston to baltimore",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cost of a round trip ticket flying from boston to dallas dallas to oakland leaving july first",
        "slots": "O O O O O O B-round_trip I-round_trip O O O B-fromloc.city_name O B-toloc.city_name B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "airfare"
    },
    {
        "utterance": "what is the latest departure from boston to pittsburgh on the seventh of july",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_number O B-depart_date.month_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the evening flights flying out of dallas and going to san francisco on american airlines",
        "slots": "O O O B-depart_time.period_of_day O O O O B-fromloc.city_name O O O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "how many american airline flights leave denver june tenth",
        "slots": "O O B-airline_name I-airline_name O O B-fromloc.city_name B-depart_date.month_name B-depart_date.day_number",
        "intent": "quantity"
    },
    {
        "utterance": "what is the latest flight leaving pittsburgh returning to denver",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want a flight from los angeles to charlotte that leaves on a weekday morning",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what does ewr stand for",
        "slots": "O O B-airport_code O O",
        "intent": "abbreviation"
    },
    {
        "utterance": "what is the lowest fare from denver to pittsburgh",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what is the earliest flight going from san francisco to dallas on monday august nineteenth",
        "slots": "O O O B-flight_mod O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "list all flights on continental leaving denver on sunday after 2134",
        "slots": "O O O O B-airline_name O B-fromloc.city_name O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what flights from detroit to st. petersburg",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how much does it cost to fly from boston to atlanta",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "are there any flights from new york to los angeles which stop over in milwaukee",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to see all the flights from boston to philadelphia",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list all flights that leave denver before noon on northwest airlines",
        "slots": "O O O O O O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "give me the flights on december twenty seventh with the fares from indianapolis to orlando",
        "slots": "O O O O O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights which leave pittsburgh tomorrow and arrive in baltimore after 5 o'clock pm",
        "slots": "O O O O O O B-fromloc.city_name B-depart_date.today_relative O O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show nonstop flights from new york to miami on a tuesday which cost less than 466 dollars one way",
        "slots": "O B-flight_stop O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-arrive_date.day_name O O B-cost_relative O B-fare_amount I-fare_amount B-round_trip I-round_trip",
        "intent": "flight"
    },
    {
        "utterance": "i would like the evening schedule of flights from san francisco to washington",
        "slots": "O O O O B-depart_time.period_of_day B-flight_time O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight_time"
    },
    {
        "utterance": "show me the flights from pittsburgh to san francisco for thursday night or friday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day B-or B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest one way fare from denver to pittsburgh",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "find me a flight from boston to san francisco with a layover in denver",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show flights from philadelphia to dallas on saturday",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me fares for flights from minneapolis to seattle on july first 1993",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number B-depart_date.year",
        "intent": "airfare"
    },
    {
        "utterance": "i need a flight from philadelphia to dallas that stops in atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from los angeles to pittsburgh on monday evening",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what kinds of planes are used by midway airlines",
        "slots": "O O O O O O O B-airline_name I-airline_name",
        "intent": "aircraft"
    },
    {
        "utterance": "i would like a nonstop flight from memphis to las vegas on march second",
        "slots": "O O O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me the type of aircraft that canadian airlines uses",
        "slots": "O O O O O O O B-airline_name I-airline_name O",
        "intent": "aircraft"
    },
    {
        "utterance": "does northwest fly into denver",
        "slots": "O B-airline_name O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "does delta aircraft fly dc10",
        "slots": "O B-airline_name O O B-aircraft_code",
        "intent": "aircraft"
    },
    {
        "utterance": "what is the first flight after 12 noon from washington for denver",
        "slots": "O O O B-flight_mod O B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from boston to atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from philadelphia to dallas",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what does restriction ap 57 mean",
        "slots": "O O O B-restriction_code I-restriction_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "i need a flight from san diego california to indianapolis indiana leaving in the afternoon on tuesday",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name B-fromloc.state_name O B-toloc.city_name B-toloc.state_name O O O B-depart_time.period_of_day O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what is fare code fn",
        "slots": "O O O O B-fare_basis_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "please show me flights available from pittsburgh to atlanta on a weekday",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-flight_mod",
        "intent": "flight"
    },
    {
        "utterance": "please list all flights from baltimore to atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from philadelphia to dallas next wednesday in the morning",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.date_relative B-depart_date.day_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "please list available ground transportation in pittsburgh",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "list flights from san jose to houston next sunday",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-depart_date.date_relative B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what united airlines first class airfare flights are available from denver to baltimore on july three",
        "slots": "O B-airline_name I-airline_name B-class_type I-class_type O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "airfare"
    },
    {
        "utterance": "find me flights that are nonstop between boston and dallas",
        "slots": "O O O O O B-flight_stop O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights go from newark to boston after 5 pm",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from san francisco to boston philadelphia or baltimore",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-toloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list daily flights of united airline from denver to baltimore with first class service",
        "slots": "O B-flight_days O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name O B-class_type I-class_type O",
        "intent": "flight"
    },
    {
        "utterance": "a one way flight from boston to san francisco please",
        "slots": "O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "what 's the first class fare round trip from atlanta to denver",
        "slots": "O O O B-class_type I-class_type O B-round_trip I-round_trip O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i would like to make a reservation for a flight to denver from philadelphia on this coming sunday",
        "slots": "O O O O O O O O O O O B-toloc.city_name O B-fromloc.city_name O B-depart_date.date_relative O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what flight do you have from san francisco to pittsburgh on the evening of august twenty seventh",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "i would like the flight from atlanta to denver that has the cheapest one way fare",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-cost_relative B-round_trip I-round_trip O",
        "intent": "flight"
    },
    {
        "utterance": "what are the fares for flights between atlanta and dfw provided by delta airlines",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.airport_code O O B-airline_name I-airline_name",
        "intent": "airfare"
    },
    {
        "utterance": "i want to go between boston and san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from memphis to las vegas on sunday",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what kind of aircraft does delta use before 8 am on august second from boston to denver",
        "slots": "O O O O O B-airline_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-depart_date.month_name B-depart_date.day_number O B-fromloc.city_name O B-toloc.city_name",
        "intent": "aircraft"
    },
    {
        "utterance": "are there any flights between pittsburgh and baltimore using a j31 aircraft",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-aircraft_code O",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to know what type of plane flies from boston to dallas fort worth after 530",
        "slots": "O O O O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name B-depart_time.time_relative B-depart_time.time",
        "intent": "aircraft"
    },
    {
        "utterance": "show me the monday flights from san francisco to pittsburgh",
        "slots": "O O O B-depart_date.day_name O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from cincinnati",
        "slots": "O O O O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "find me the cheapest one way fare i can get from boston to denver",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i 'd like to fly from denver to pittsburgh with a stop in atlanta",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all all flights from pittsburgh to atlanta on wednesday which leave before noon and serve breakfast",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O O B-depart_time.time_relative B-depart_time.time O O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "shortest morning flights from cincinnati to tampa",
        "slots": "B-flight_mod B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "do you have any direct flights from pittsburgh to atlanta",
        "slots": "O O O O B-connect O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there from atlanta to baltimore",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "can you show me what fares are available from oakland to dallas on december sixteenth one way only",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number B-round_trip I-round_trip O",
        "intent": "airfare"
    },
    {
        "utterance": "what 's the name of the denver airport",
        "slots": "O O O O O O B-airport_name I-airport_name",
        "intent": "airport"
    },
    {
        "utterance": "cheapest fare from indianapolis to seattle",
        "slots": "B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me round trip fares from san jose to salt lake city",
        "slots": "O O B-round_trip I-round_trip O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what pm flights are available from philadelphia to pittsburgh",
        "slots": "O B-depart_time.period_of_day O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'm in miami and i 'd like to travel to las vegas on sunday",
        "slots": "O O O B-fromloc.city_name O O O O O O O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to see the cheapest flight from denver to pittsburgh",
        "slots": "O O O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from la guardia or jfk to cleveland",
        "slots": "O O B-fromloc.airport_name I-fromloc.airport_name B-or B-fromloc.airport_code O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need to fly from boston to denver and then to san francisco and back to boston",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-toloc.city_name I-toloc.city_name O O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all united flights from boston to san francisco with fare code qx",
        "slots": "O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-fare_basis_code",
        "intent": "flight"
    },
    {
        "utterance": "show me all nationair flights from toronto",
        "slots": "O O O B-airline_name O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list all flights from denver to philadelphia two saturdays from now",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.date_relative B-depart_date.day_name O O",
        "intent": "flight"
    },
    {
        "utterance": "show me the cheapest flights round trip from new york to san jose",
        "slots": "O O O B-cost_relative O B-round_trip I-round_trip O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "tell me about flights from toronto to salt lake city",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a ticket from los angeles to charlotte that leaves early in the morning",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_mod O O B-depart_time.period_of_day",
        "intent": "airfare"
    },
    {
        "utterance": "show the flights from san francisco to pittsburgh",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how can i go from minneapolis to long beach late tomorrow",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_time.period_mod B-depart_date.today_relative",
        "intent": "flight"
    },
    {
        "utterance": "which airlines fly between baltimore and san francisco",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "all flights from washington dc to san francisco after 5 pm on november twelfth economy class",
        "slots": "O O O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name I-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-depart_date.month_name B-depart_date.day_number B-economy I-economy",
        "intent": "flight"
    },
    {
        "utterance": "could you tell me the flights leaving pittsburgh around midnight for oakland",
        "slots": "O O O O O O O B-fromloc.city_name B-depart_time.time_relative B-depart_time.period_of_day O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from las vegas to burbank on saturday may twenty two",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what flights can i find from pittsburgh to san francisco after 9 am",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "could you please show me all flights from milwaukee to montreal",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please give me the flights from boston to pittsburgh on thursday of next week",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-depart_date.date_relative O",
        "intent": "flight"
    },
    {
        "utterance": "all flights and fares from atlanta to dallas round trip after 12 pm less than 1100 dollars",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip B-depart_time.time_relative B-depart_time.time I-depart_time.time B-cost_relative O B-fare_amount I-fare_amount",
        "intent": "flight+airfare"
    },
    {
        "utterance": "i want a flight between oakland and boston that arrives before 5 pm",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available from san francisco to pittsburgh on thursday evening",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights arriving in baltimore from philadelphia at about 4 o'clock",
        "slots": "O O O O O O B-toloc.city_name O B-fromloc.city_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "how many airports does oakland have",
        "slots": "O O O O B-city_name O",
        "intent": "quantity"
    },
    {
        "utterance": "flight from denver to salt lake city",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all united flights from philadelphia to san francisco",
        "slots": "O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from las vegas to montreal",
        "slots": "O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all the takeoffs and landings at general mitchell international",
        "slots": "O O O O O O O B-airport_name I-airport_name I-airport_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the last flight from houston to dallas",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the name of the airport in philadelphia",
        "slots": "O O O O O O O O B-city_name",
        "intent": "airport"
    },
    {
        "utterance": "does the phoenix airport have ground transportation to and from downtown",
        "slots": "O O B-airport_name I-airport_name O O O O O O O",
        "intent": "ground_service"
    },
    {
        "utterance": "what ground transportation is available from the denver airport to downtown denver",
        "slots": "O O O O O O O B-fromloc.airport_name I-fromloc.airport_name O O B-toloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what is the latest first class flight of the day leaving dallas for san francisco",
        "slots": "O O O B-flight_mod B-class_type I-class_type O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from philadelphia to baltimore in the morning",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "list the flights from new york to miami on a tuesday which are nonstop and cost less than 466 dollars",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name O O B-flight_stop O O B-cost_relative O B-fare_amount I-fare_amount",
        "intent": "flight"
    },
    {
        "utterance": "please show me the philadelphia to denver saturday flights again",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.day_name O O",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to book a flight from columbus to nashville please",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "show me all the flights to baltimore from denver or philadelphia or pittsburgh",
        "slots": "O O O O O O B-toloc.city_name O B-fromloc.city_name B-or B-fromloc.city_name B-or B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from tacoma to miami after 6 pm",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "information on first class round trip from pittsburgh to san francisco",
        "slots": "O O B-class_type I-class_type B-round_trip I-round_trip O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to fly philadelphia to san francisco on july eighth",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "tell me about the ground transportation in chicago",
        "slots": "O O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what does it cost to fly from boston to san francisco on united airlines flight 21",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name O B-flight_number",
        "intent": "airfare"
    },
    {
        "utterance": "i need a flight from baltimore to seattle that stops in minneapolis",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from denver to boston on thursday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to arrange a trip to baltimore on january first",
        "slots": "O O O O O O O O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "i would like to see the daily flights from baltimore to philadelphia",
        "slots": "O O O O O O B-flight_days O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "on august thirtieth i would like a flight from denver to san francisco in the early am",
        "slots": "O B-depart_date.month_name B-depart_date.day_number O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_time.period_mod B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me all direct flights from dallas fort worth to either san francisco or oakland",
        "slots": "O O O B-connect O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O O B-toloc.city_name I-toloc.city_name B-or B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights to dallas from san francisco atlanta and pittsburgh",
        "slots": "O O O O O B-toloc.city_name O B-fromloc.city_name I-fromloc.city_name B-fromloc.city_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "do you have a flight from atlanta to baltimore nonstop on a boeing 757 arriving baltimore around 7 pm",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-flight_stop O O O B-aircraft_code O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from indianapolis to montreal",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is your least expensive fare between atlanta and boston",
        "slots": "O O O B-cost_relative I-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i would like to make a one way flight from boston to atlanta",
        "slots": "O O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the first flight from boston to dallas",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights that go from tacoma to miami",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights between boston and san francisco denver and san francisco boston and denver",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me the flights from denver to baltimore on united airlines",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the latest flight from washington dc to denver",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what does co mean",
        "slots": "O O B-airline_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "i want a flight from atlanta to pittsburgh",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to see the flights from denver to philadelphia",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "where does flight ua 281 from boston to oakland stop",
        "slots": "O O O B-airline_code B-flight_number O B-fromloc.city_name O B-toloc.city_name B-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "i need to spend much of a day on the ground in atlanta find me an early flight from boston and the lastest possible flight back from atlanta",
        "slots": "O O O O O O O O O O O O B-toloc.city_name O O O B-flight_mod O O B-fromloc.city_name O O B-flight_mod O O O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights land at general mitchell international",
        "slots": "O O O O B-toloc.airport_name I-toloc.airport_name I-toloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "display types of aircraft departing from cleveland to dallas before noon",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time",
        "intent": "aircraft"
    },
    {
        "utterance": "what 's the fare for delta flight 217 from dallas to san francisco",
        "slots": "O O O O O B-airline_name O B-flight_number O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what flights are available from dallas to atlanta with one way economy fares",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-round_trip I-round_trip B-economy O",
        "intent": "flight"
    },
    {
        "utterance": "are there any nonstop flights from indianapolis to san diego on wednesday may twelfth",
        "slots": "O O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-arrive_date.day_name B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "list the cheapest one way flight from miami florida to charlotte north carolina",
        "slots": "O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name B-fromloc.state_name O B-toloc.city_name B-toloc.state_name I-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to find a flight from las vegas to detroit michigan that leaves in the afternoon on monday",
        "slots": "O O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-toloc.state_name O O O O B-depart_time.period_of_day O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "could you tell me if there is ground transportation between the boston airport and boston downtown",
        "slots": "O O O O O O O O O O O B-fromloc.airport_name I-fromloc.airport_name O B-toloc.city_name O",
        "intent": "ground_service"
    },
    {
        "utterance": "what are the flights from montreal to chicago",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "oakland to san francisco please breakfast flight",
        "slots": "B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-meal_description O",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from milwaukee to orlando on thursday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "how long is the flight from atlanta to san francisco at noon on november seventh",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_time.time O B-depart_date.month_name B-depart_date.day_number",
        "intent": "distance"
    },
    {
        "utterance": "what are the flight numbers of the flights which go from san francisco to washington via indianapolis",
        "slots": "O O O O O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-stoploc.city_name",
        "intent": "flight_no"
    },
    {
        "utterance": "what flights are there on continental from seattle to chicago",
        "slots": "O O O O O B-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "does midwest express have any flights from montreal to nashville",
        "slots": "O B-airline_name O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "can you tell me which flights go from memphis to tacoma and make a stop in los angeles",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O O B-stoploc.city_name I-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show flights from pittsburgh into san francisco",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like a flight on united airlines from dallas to san francisco that leaves after 815 am",
        "slots": "O O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "flights from baltimore to dallas",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what airline is ea the abbreviation for",
        "slots": "O O O B-airline_code O O O",
        "intent": "airline"
    },
    {
        "utterance": "all flights from sfo to long beach",
        "slots": "O O O B-fromloc.airport_code O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there from atlanta to oakland on thursday with in flight meals",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O O O B-meal",
        "intent": "flight"
    },
    {
        "utterance": "i need fare information from denver to pittsburgh",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me a list of flights on american airlines from boston to dc on july twenty second",
        "slots": "O O O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.state_code O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "how much does it cost to fly one way from boston to washington first class",
        "slots": "O O O O O O O B-round_trip I-round_trip O B-fromloc.city_name O B-toloc.city_name B-class_type I-class_type",
        "intent": "airfare"
    },
    {
        "utterance": "flights from oakland to san francisco",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are currently available between boston and dallas fort worth",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me a list of ground transportation at boston airport",
        "slots": "O O O O O O O O B-airport_name I-airport_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what sort of ground transportation is there in washington dc",
        "slots": "O O O O O O O O B-city_name B-state_code",
        "intent": "ground_service"
    },
    {
        "utterance": "give me the flights from boston to san francisco leaving early today",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_time.period_mod B-depart_date.today_relative",
        "intent": "flight"
    },
    {
        "utterance": "san francisco to boston please with a stopover in denver",
        "slots": "B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what airlines fly from dallas to baltimore",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "what flights can i take between boston and atlanta so that when i leave boston i will have the maximum amount of time on the ground in atlanta and still return in the same day",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O O B-fromloc.city_name O O O O O O O O O O O O B-toloc.city_name O O O O O O B-return_date.date_relative",
        "intent": "flight"
    },
    {
        "utterance": "oakland to philadelphia",
        "slots": "B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the lowest priced fare from dallas to baltimore",
        "slots": "O O O B-cost_relative O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "flights from cincinnati to dallas departing after 718 am",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "find the cheapest one way fare from pittsburgh to san francisco",
        "slots": "O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "flight from nashville back to milwaukee",
        "slots": "O O B-fromloc.city_name O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the fares between new york and la on monday morning",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "airfare"
    },
    {
        "utterance": "how many flights does twa have with business class",
        "slots": "O O O O B-airline_code O O B-class_type I-class_type",
        "intent": "quantity"
    },
    {
        "utterance": "what are the nonstop flights from kansas city to burbank arriving on saturday may twenty two",
        "slots": "O O O B-flight_stop O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-arrive_date.day_name B-arrive_date.month_name B-arrive_date.day_number I-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me all the flights from indianapolis to san diego on us air",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "show me ground transportation in boston and in baltimore",
        "slots": "O O O O O B-city_name O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "flight from nashville to cleveland",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "round trip air fares from pittsburgh to philadelphia less than 1000 dollars",
        "slots": "B-round_trip I-round_trip O O O B-fromloc.city_name O B-toloc.city_name B-cost_relative O B-fare_amount I-fare_amount",
        "intent": "airfare"
    },
    {
        "utterance": "show flights from cleveland to miami that arrive before 4 pm",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to fly from san francisco to boston with a stopover in dallas fort worth and i want to fly on delta airlines",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name I-stoploc.city_name I-stoploc.city_name O O O O O O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from st. louis to burbank sunday evening",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i want an early morning flight between philadelphia and pittsburgh on tuesday morning",
        "slots": "O O O B-depart_time.period_of_day B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "from washington to atlanta",
        "slots": "O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from denver to boston on tuesday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what does the fare code f mean",
        "slots": "O O O O O B-fare_basis_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "what is airline ff",
        "slots": "O O O B-airline_code",
        "intent": "airline"
    },
    {
        "utterance": "what ground transportation can i take into boston",
        "slots": "O O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "please show me flights from denver to san francisco on wednesday after 1300 hours",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "give me all flights from boston to philadelphia next week arriving after lunch",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.date_relative O O B-arrive_time.time_relative B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from washington dc to san francisco with a stopover in denver",
        "slots": "O O O O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the earliest flight from nashville to tacoma on american on tuesday the eighteenth of may",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O B-airline_name O B-depart_date.day_name O B-depart_date.day_number O B-depart_date.month_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight from pittsburgh to san francisco",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "does midwest express serve baltimore",
        "slots": "O B-airline_name O O B-city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me fares leaving on tuesdays from denver to go to dallas",
        "slots": "O O O O O B-depart_date.day_name O B-fromloc.city_name O O O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "where is general mitchell international located",
        "slots": "O O B-airport_name I-airport_name I-airport_name O",
        "intent": "city"
    },
    {
        "utterance": "show me all daily flights between milwaukee and orlando",
        "slots": "O O O B-flight_days O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the round trip fares for flights from denver to philadelphia arriving after 1700 on continental",
        "slots": "O O O B-round_trip I-round_trip O O O O B-fromloc.city_name O B-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time O B-airline_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me all daily flights out of boston that have coach class",
        "slots": "O O O B-flight_days O O O B-fromloc.city_name O O B-class_type I-class_type",
        "intent": "flight"
    },
    {
        "utterance": "i would like to fly from boston to philadelphia next thursday",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.date_relative B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cost for these flights from baltimore to philadelphia",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i would like a us air flight from toronto to san diego with a stopover in denver please",
        "slots": "O O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to book the cheapest one way flight from denver to pittsburgh on july fifteenth",
        "slots": "O O O O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "i would like to fly from dallas to san francisco on saturday and arrive in san francisco before 4 pm",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name O O O B-toloc.city_name I-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me cheap flights from baltimore to dallas",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "are there any flights on us air from pittsburgh to atlanta on wednesday",
        "slots": "O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from milwaukee to orlando on wednesday after 6 pm",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available with q fares from boston to pittsburgh",
        "slots": "O O O O O B-fare_basis_code I-fare_basis_code O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all the flights from toronto on nationair",
        "slots": "O O O O O O B-fromloc.city_name O B-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "please list the cheapest flights from dallas to baltimore arriving on may seventh",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show flights from san francisco to denver on either wednesday the twenty third or thursday the twenty fourth",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name O B-depart_date.day_number I-depart_date.day_number B-or B-depart_date.day_name O B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "does any airline have an early afternoon flight from boston to denver",
        "slots": "O O O O O B-depart_time.period_of_day B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "i would like information on flights from pittsburgh to baltimore arriving in baltimore before 10 am on thursday",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the ground transportation from philadelphia airport to the city proper",
        "slots": "O O O O O O B-fromloc.airport_name I-fromloc.airport_name O O O O",
        "intent": "ground_service"
    },
    {
        "utterance": "show me the direct flights from san francisco to boston",
        "slots": "O O O B-connect O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what airline is ea",
        "slots": "O O O B-airline_code",
        "intent": "airline"
    },
    {
        "utterance": "show me the coach fares from baltimore to dallas",
        "slots": "O O O B-class_type O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "return from miami to new york on tower air on saturdays",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from pittsburgh to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want a flight on saturday from minneapolis to long beach",
        "slots": "O O O O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like some information on the earliest flights you have leaving atlanta arriving in denver",
        "slots": "O O O O O O O B-flight_mod O O O O B-fromloc.city_name O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me a list of flights from denver to san francisco for september first 1991",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.month_name B-depart_date.day_number B-depart_date.year",
        "intent": "flight"
    },
    {
        "utterance": "what 's the difference between fare code q and fare code b",
        "slots": "O O O O O O O B-fare_basis_code O O O B-fare_basis_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "which flights leaving baltimore to dallas on monday afternoon have economic class",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day O B-class_type O",
        "intent": "flight"
    },
    {
        "utterance": "show departures from atlanta for american",
        "slots": "O O O B-fromloc.city_name O B-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's a flight that goes from baltimore to seattle",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the earliest flight on wednesday from baltimore to newark",
        "slots": "O O O B-flight_mod O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show flights between denver and san francisco for september seventeenth",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "find me the earliest boston departure for atlanta and the lastest return trip from atlanta so that i can be in atlanta the longest amount of time but return to boston the same day",
        "slots": "O O O B-flight_mod B-fromloc.city_name O O B-toloc.city_name O O B-flight_mod O O O B-fromloc.city_name O O O O O O B-toloc.city_name O O O O O O O O B-toloc.city_name O O B-return_date.date_relative",
        "intent": "flight"
    },
    {
        "utterance": "please list the morning flights from kansas city to atlanta",
        "slots": "O O O B-depart_time.period_of_day O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is there ground transportation in oakland",
        "slots": "O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show me fares from philadelphia to san francisco on thursday morning",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "airfare"
    },
    {
        "utterance": "what does restriction ap 57 mean",
        "slots": "O O O B-restriction_code I-restriction_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "i would like to book an early morning flight from tampa to charlotte on april sixth",
        "slots": "O O O O O O B-depart_time.period_of_day B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "find me the earliest flight from boston to atlanta on any day of the week",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "i would like to know the latest flight on wednesday you have leaving from oakland to salt lake city which offers a meal",
        "slots": "O O O O O O B-flight_mod O O B-depart_date.day_name O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name O O O B-meal",
        "intent": "flight"
    },
    {
        "utterance": "show me all the flights on delta airlines and twa that go to atlanta in the morning",
        "slots": "O O O O O O B-airline_name I-airline_name O B-airline_code O O O B-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what limousine service in toronto",
        "slots": "O B-transport_type O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "delta flights to dallas please",
        "slots": "B-airline_name O O B-toloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "what are your flights from denver to baltimore",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the cheapest fares for flights from newark to la leaving wednesday after 3 pm",
        "slots": "O O O B-cost_relative O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "airfare"
    },
    {
        "utterance": "on september fourth i 'll be traveling from pittsburgh to atlanta can you tell me what flight would be the cheapest",
        "slots": "O B-depart_date.month_name B-depart_date.day_number O O O O O B-fromloc.city_name O B-toloc.city_name O O O O O O O O O B-cost_relative",
        "intent": "flight"
    },
    {
        "utterance": "is there a flight on continental airlines from boston to denver",
        "slots": "O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the united airlines flights from denver to baltimore leaving on june fourteenth",
        "slots": "O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "i would like to know the flights available from boston to denver arriving in denver by 8 o'clock wednesday morning",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time B-arrive_date.day_name B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me all nonstop flights between denver and oakland leaving after noon and arriving after 5 pm",
        "slots": "O O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "and what is the last flight from denver to boston for tomorrow evening",
        "slots": "O O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.today_relative B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me all midwest express flights from detroit to chicago",
        "slots": "O O O B-airline_name O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what kind of aircraft is used on the first class american airlines flight from philadelphia to san francisco stopping in dallas",
        "slots": "O O O O O O O O B-class_type I-class_type B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-stoploc.city_name",
        "intent": "aircraft"
    },
    {
        "utterance": "show me the flights from philadelphia to dallas that stop in atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which flights are there on tuesday from san francisco to pittsburgh",
        "slots": "O O O O O B-depart_date.day_name O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the abbreviation d10",
        "slots": "O O O O B-aircraft_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "please list all flights between boston and atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is fare code h",
        "slots": "O O O O B-fare_basis_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "are there any flights before 12 noon on june fifteenth from long beach to columbus",
        "slots": "O O O O B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-depart_date.month_name B-depart_date.day_number O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from boston to baltimore coach on wednesday about 12 noon",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-class_type O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "baltimore to philadelphia wednesday",
        "slots": "B-fromloc.city_name O B-toloc.city_name B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights on delta or twa which go through atlanta",
        "slots": "O O O O O B-airline_name B-or B-airline_code O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like a flight from kansas city to los angeles that arrives in los angeles in the late afternoon",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-toloc.city_name I-toloc.city_name O O B-arrive_time.period_of_day I-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i would like to book a flight from los angeles to pittsburgh on june first",
        "slots": "O O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me the evening flights from philadelphia to baltimore",
        "slots": "O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "all flights from boston to washington dc on november tenth",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from phoenix to milwaukee on american airlines on wednesday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the fare from philadelphia to pittsburgh business class one way",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-class_type I-class_type B-round_trip I-round_trip",
        "intent": "airfare"
    },
    {
        "utterance": "show flights from atlanta to baltimore",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "describe fare code qx",
        "slots": "O O O B-fare_basis_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "is there a delta flight from denver to san francisco",
        "slots": "O O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what does the abbreviation co mean",
        "slots": "O O O O B-airline_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "i want a flight from boston to denver that stops in pittsburgh",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights arriving to denver from boston",
        "slots": "O O O O O O B-toloc.city_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all the available flights from baltimore to dallas with economy fares",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-economy O",
        "intent": "flight"
    },
    {
        "utterance": "display all flights from denver to san francisco on august seven",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "coach fares only weekdays for denver to boston",
        "slots": "B-class_type O B-flight_mod I-flight_mod O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what flights go from philadelphia to san francisco with a stopover in dallas",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the earliest flight from san jose to houston",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to see all flights from pittsburgh to philadelphia again",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "explain the restriction ap 80",
        "slots": "O O O B-restriction_code I-restriction_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "show me the ground transportation schedule in san francisco on thursday evening",
        "slots": "O O O O O O O B-city_name I-city_name O B-day_name B-period_of_day",
        "intent": "ground_service"
    },
    {
        "utterance": "show me fares from seattle to minneapolis",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "please show me all fares for flights from denver to oakland",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what are the cost of morning flights from atlanta to baltimore",
        "slots": "O O O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i want a flight from philadelphia to dallas with a stop in atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the aircraft that canadian airlines uses",
        "slots": "O O O O O B-airline_name I-airline_name O",
        "intent": "aircraft"
    },
    {
        "utterance": "what is the fare on continental 271 from dallas to san francisco",
        "slots": "O O O O O B-airline_name B-flight_number O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "find travel arrangements for a round trip flight from baltimore to pittsburgh after 8 o'clock pm before 10 o'clock pm",
        "slots": "O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time I-depart_time.time B-depart_time.time_relative B-depart_time.time I-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "please list all first class flights on united from denver to baltimore",
        "slots": "O O O B-class_type I-class_type O O B-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to fly from boston to san francisco",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list nonstop flights from las vegas to new york on america west",
        "slots": "O O B-flight_stop O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "interested in a flight from washington to fort worth",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which cities are serviced by both american and delta airlines",
        "slots": "O O O O O O B-airline_name O B-airline_name I-airline_name",
        "intent": "city"
    },
    {
        "utterance": "what flights are there on sunday from seattle to chicago",
        "slots": "O O O O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the airlines between toronto and denver",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "show flights from denver into san francisco",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the cheapest flight from denver to pittsburgh for both one way and round trip flights",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name O O B-round_trip I-round_trip O B-round_trip I-round_trip O",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from denver to atlanta on june sixteenth",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what airlines from washington dc to columbus",
        "slots": "O O O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "what flights are there on sunday from seattle to minneapolis",
        "slots": "O O O O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list flights from san francisco to denver on friday",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "please list the thursday morning flights from st. louis to st. paul",
        "slots": "O O O B-depart_date.day_name B-depart_time.period_of_day O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "american airlines from phoenix to milwaukee",
        "slots": "B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the flights between san jose and houston",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the prices of first class tickets on us air round trip from cleveland to miami",
        "slots": "O O O O O B-class_type I-class_type O O B-airline_name I-airline_name B-round_trip I-round_trip O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what is the earliest flight on thursday from atlanta to washington dc",
        "slots": "O O O B-flight_mod O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "show all flights from pittsburgh to san francisco on july twenty eighth 1991",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number B-depart_date.year",
        "intent": "flight"
    },
    {
        "utterance": "i would like to book a flight from charlotte to baltimore on april eighth",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "okay i need to see economy flights on united between dallas and baltimore",
        "slots": "O O O O O B-economy O O B-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from dallas to houston and from houston to dallas",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available saturday to san francisco from dallas",
        "slots": "O O O O B-depart_date.day_name O B-toloc.city_name I-toloc.city_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights denver to washington dc on thursday",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to fly from columbus to nashville tomorrow morning",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.today_relative B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what is the lowest fare united charges between boston and san francisco",
        "slots": "O O O B-cost_relative O B-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "newark to cleveland daily",
        "slots": "B-fromloc.city_name O B-toloc.city_name B-flight_days",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from philadelphia to atlanta georgia",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "list all round trip fares from phoenix to washington",
        "slots": "O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what flights are available from denver to baltimore first class on united airlines arriving may seventh before noon",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-class_type I-class_type O B-airline_name I-airline_name O B-arrive_date.month_name B-arrive_date.day_number B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i would like to fly from baltimore to san francisco on eastern airlines",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "round trip fares from denver to philadelphia less than 1000 dollars",
        "slots": "B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name B-cost_relative O B-fare_amount I-fare_amount",
        "intent": "airfare"
    },
    {
        "utterance": "atlanta to oakland thursday",
        "slots": "B-fromloc.city_name O B-toloc.city_name B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the distance between pittsburgh airport and downtown pittsburgh",
        "slots": "O O O O O B-fromloc.airport_name I-fromloc.airport_name O O B-toloc.city_name",
        "intent": "distance"
    },
    {
        "utterance": "show me the flights from atlanta to washington dc on wednesday night and thursday morning",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O B-depart_date.day_name B-depart_time.period_of_day O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "could you tell me what the abbreviation us stands for",
        "slots": "O O O O O O O B-airline_code O O",
        "intent": "abbreviation"
    },
    {
        "utterance": "is ground transportation available in philadelphia",
        "slots": "O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "list the flights from toronto to salt lake city",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from new york to miami leaving on a tuesday and show me all flights from miami to new york leaving on sunday",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O B-depart_date.day_name O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show all flights and fares from pittsburgh to san francisco",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight+airfare"
    },
    {
        "utterance": "i 'm flying from boston to the bay area",
        "slots": "O O O O B-fromloc.city_name O O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what airline is dl 98",
        "slots": "O O O B-airline_code B-flight_number",
        "intent": "airline"
    },
    {
        "utterance": "show me flights from all airports to love field",
        "slots": "O O O O O O O B-toloc.airport_name I-toloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "a breakfast flight from denver to san francisco please",
        "slots": "O B-meal_description O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "i need the cost of a ticket going from denver to baltimore a first class ticket on united airlines",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-class_type I-class_type O O B-airline_name I-airline_name",
        "intent": "airfare"
    },
    {
        "utterance": "give me flights on american airlines from milwaukee to phoenix",
        "slots": "O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like a list of flights from pittsburgh to dallas",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list daily flights from oakland to boston using united airlines",
        "slots": "O B-flight_days O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from boston to san francisco leaving in the afternoon and arriving in the evening thank you",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-depart_time.period_of_day O O O O B-arrive_time.period_of_day O O",
        "intent": "flight"
    },
    {
        "utterance": "now show me flights from pittsburgh to philadelphia",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the airfare from pittsburgh to atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what kind of airplane is flight ua 281 from boston to denver",
        "slots": "O O O O O O B-airline_code B-flight_number O B-fromloc.city_name O B-toloc.city_name",
        "intent": "aircraft"
    },
    {
        "utterance": "ground transportation for st. paul",
        "slots": "O O O B-city_name I-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "flights from newark to cleveland",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is there ground transportation from the airport in denver to downtown",
        "slots": "O O O O O O O O B-fromloc.city_name O O",
        "intent": "ground_service"
    },
    {
        "utterance": "i 'd like to fly from boston to oakland through denver",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how far is the airport from san francisco",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name",
        "intent": "distance"
    },
    {
        "utterance": "what are my choices of flights leaving early afternoon from minneapolis to indianapolis",
        "slots": "O O O O O O O B-depart_time.period_of_day B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what does dfw mean",
        "slots": "O O B-airport_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "show me prices of flights from baltimore to dallas",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i would like a flight on american airlines from baltimore to san francisco with a stop in denver",
        "slots": "O O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights going from boston to denver arriving on wednesday morning",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_date.day_name B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "a listing of all flights from boston to baltimore before 10 am on thursday",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "economy fares new york to miami round trip",
        "slots": "B-economy O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip",
        "intent": "airfare"
    },
    {
        "utterance": "show me the flights from atlanta to philadelphia",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the cheapest round trips from dallas to baltimore",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "from pittsburgh to baltimore",
        "slots": "O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what kind of airplane is flight ua 270 from denver to philadelphia",
        "slots": "O O O O O O B-airline_code B-flight_number O B-fromloc.city_name O B-toloc.city_name",
        "intent": "aircraft"
    },
    {
        "utterance": "what is the fare code y and what is the fare code h",
        "slots": "O O O O O B-fare_basis_code O O O O O O B-fare_basis_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "find a flight from san francisco to boston on wednesday",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the itinerary for the connecting flight from dallas fort worth to san francisco that departs dallas fort worth at 1940",
        "slots": "O O O O O O B-connect O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available from boston to denver today",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.today_relative",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest first class fare from cleveland to miami on us air on february twenty fourth",
        "slots": "O O O B-cost_relative B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "airfare"
    },
    {
        "utterance": "what are the fares for flights from la to newark leaving monday morning",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "airfare"
    },
    {
        "utterance": "tell me about ground transportation at san francisco",
        "slots": "O O O O O O B-city_name I-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i 'd like to fly from denver to atlanta with a stop in pittsburgh",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need to go from boston to atlanta and back in the same day find me the earliest flight from boston",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O O O B-return_date.date_relative O O O B-flight_mod O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need to go from philadelphia to dallas",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "the cheapest flights from atlanta to philadelphia that arrive after 12 pm on a tuesday",
        "slots": "O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time O O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what kind of ground transportation is available in denver",
        "slots": "O O O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "philadelphia to san francisco with one stop in dallas please",
        "slots": "B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-flight_stop I-flight_stop O B-stoploc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "tell me about flights from st. petersburg arriving in toronto before noon",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from philadelphia to dallas with one stop",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-flight_stop I-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "show me flights on monday from philadelphia to boston after 7 am",
        "slots": "O O O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me round trip fares from baltimore to philadelphia",
        "slots": "O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "and i 'll need ground transportation for tuesday july sixth to wednesday july seventh in san diego",
        "slots": "O O O O O O O B-day_name B-month_name B-day_number O B-day_name B-month_name B-day_number O B-city_name I-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i need a flight from indianapolis to houston on twa",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_code",
        "intent": "flight"
    },
    {
        "utterance": "how many cities are served by lufthansa with first class flights",
        "slots": "O O O O O O B-airline_name O B-class_type I-class_type O",
        "intent": "quantity"
    },
    {
        "utterance": "what 's the cheapest way to fly between atlanta and denver",
        "slots": "O O O B-cost_relative O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "can you show me flights that are economy class from baltimore to dallas",
        "slots": "O O O O O O O B-economy I-economy O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is hp",
        "slots": "O O B-airline_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "what about a flight from boston to san francisco stopping in denver",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from boston to pittsburgh after 723 pm",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "flights from pittsburgh to baltimore arriving between 4 and 5 pm",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_time.start_time O B-arrive_time.end_time I-arrive_time.end_time",
        "intent": "flight"
    },
    {
        "utterance": "flights from cincinnati to o 'hare departing after 718 am american",
        "slots": "O O B-fromloc.city_name O B-toloc.airport_name I-toloc.airport_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time B-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'm traveling to dallas from philadelphia",
        "slots": "O O O O B-toloc.city_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cost of a flight from boston to san francisco",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i need a flight delta airlines kansas city to salt lake",
        "slots": "O O O O B-airline_name I-airline_name B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flight information from san francisco to pittsburgh",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what time zone is denver in",
        "slots": "O O O O B-city_name O",
        "intent": "city"
    },
    {
        "utterance": "what is the earliest flight leaving denver and arriving in baltimore on united airlines first class on july fourth",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O O O B-toloc.city_name O B-airline_name I-airline_name B-class_type I-class_type O B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what airlines leave from washington",
        "slots": "O O O O B-fromloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "i would like to fly on american airlines from baltimore to san francisco",
        "slots": "O O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights and fares from denver to san francisco",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight+airfare"
    },
    {
        "utterance": "is there ground transportation in baltimore",
        "slots": "O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "list daily flights from boston to oakland using united airlines",
        "slots": "O B-flight_days O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the lowest price from dallas to baltimore",
        "slots": "O O O B-cost_relative I-cost_relative O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest fare between boston and san francisco",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "display all flights from boston to baltimore on july thirty first",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what 's the cost of a first class fare from philadelphia to san francisco",
        "slots": "O O O O O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me the flights from boston to atlanta and the return flights from atlanta to boston",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me the flights from miami to new york using tower air",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights from boston to san francisco on us air",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the lowest price fare from atlanta to san francisco on flight delta 82 and delta 139",
        "slots": "O O O B-cost_relative I-cost_relative O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-airline_name B-flight_number O B-airline_name B-flight_number",
        "intent": "airfare"
    },
    {
        "utterance": "from las vegas to new york a nonstop twa and fare",
        "slots": "O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-flight_stop B-airline_code O O",
        "intent": "flight"
    },
    {
        "utterance": "list american airlines flights from newark to nashville",
        "slots": "O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need to fly from kansas city to chicago leaving next wednesday and returning the following day",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.date_relative B-depart_date.day_name O O B-return_date.date_relative I-return_date.date_relative I-return_date.date_relative",
        "intent": "flight"
    },
    {
        "utterance": "which airlines fly from bwi to dallas fort worth",
        "slots": "O O O O B-fromloc.airport_code O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "how many of delta 's night flights are first class",
        "slots": "O O O B-airline_name I-airline_name B-depart_time.period_of_day O O B-class_type I-class_type",
        "intent": "quantity"
    },
    {
        "utterance": "what kind of ground transportation is available in las vegas",
        "slots": "O O O O O O O O B-city_name I-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what is the earliest flight on friday from washington to san francisco",
        "slots": "O O O B-flight_mod O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list nonstop flights from baltimore washington airport to oakland that depart in the afternoon",
        "slots": "O B-flight_stop O O B-fromloc.city_name B-fromloc.airport_name I-fromloc.airport_name O B-toloc.city_name O O O O B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me the least expensive flight from miami to new york on a sunday with first class fare",
        "slots": "O O O B-cost_relative I-cost_relative O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_date.day_name O B-class_type I-class_type O",
        "intent": "flight"
    },
    {
        "utterance": "what ground transportation is available at denver airport",
        "slots": "O O O O O O B-airport_name I-airport_name",
        "intent": "ground_service"
    },
    {
        "utterance": "can you list all flights from chicago to st. louis that depart after 12 noon",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what is restriction ap 57",
        "slots": "O O O B-restriction_code I-restriction_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "could you tell me if delta flight 296 serves breakfast",
        "slots": "O O O O O B-airline_name O B-flight_number O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "what does fare code qo mean",
        "slots": "O O O O B-fare_basis_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "show me the flights from st. petersburg to toronto that arrive early in the morning",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-arrive_time.period_mod O O B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "please show me all the flights from boston",
        "slots": "O O O O O O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest american airlines flight that i can get first class from philadelphia to dallas",
        "slots": "O O O B-flight_mod B-airline_name I-airline_name O O O O O B-class_type I-class_type O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "thanks and what 's the last flight back from washington to boston",
        "slots": "O O O O O B-flight_mod O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "all the flights from baltimore to san francisco",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the number of flights arriving in dallas fort worth from boston before noon",
        "slots": "O O O O O O O B-toloc.city_name I-toloc.city_name I-toloc.city_name O B-fromloc.city_name B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight_no"
    },
    {
        "utterance": "first flights from pittsburgh to atlanta on a thursday",
        "slots": "B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the schedule for flights between pittsburgh and boston on the evening of july ninth",
        "slots": "O O O B-flight_time I-flight_time I-flight_time O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight_time"
    },
    {
        "utterance": "on tuesday i 'd like to find a flight from detroit to st. petersburg that arrives before 10 pm",
        "slots": "O B-depart_date.day_name O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "hi i 'd like a flight from tampa to montreal",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from pittsburgh to new york departing after 5 pm",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from denver to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how many passengers fit on a d9s",
        "slots": "O O O O O O B-aircraft_code",
        "intent": "capacity"
    },
    {
        "utterance": "show me all flights from pittsburgh to dallas",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the fares for a first class ticket from baltimore to dallas",
        "slots": "O O O O O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "united airlines flights stopping in denver before noon",
        "slots": "B-airline_name I-airline_name O O O B-stoploc.city_name B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "give me a flight from memphis to las vegas and new york city to las vegas on sunday that arrive at the same time",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "what type of aircraft are used on flights from cleveland to dallas that leave before noon",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.time_relative B-depart_time.time",
        "intent": "aircraft"
    },
    {
        "utterance": "i would like a to know the type of aircraft leaving from atlanta bound to boston on friday this week",
        "slots": "O O O O O O O O O O O O B-fromloc.city_name O O B-toloc.city_name O B-depart_date.day_name O O",
        "intent": "aircraft"
    },
    {
        "utterance": "what is the earliest flight from boston to atlanta",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest one way fare from atlanta to boston",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what are the flights from kansas city to burbank on saturday may twenty two on southwest",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O B-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cost of a first class ticket from dallas fort worth to san francisco",
        "slots": "O O O O O O B-class_type I-class_type O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "ground transportation in san jose",
        "slots": "O O O B-city_name I-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i 'd like a flight tomorrow from kansas city to newark in the morning",
        "slots": "O O O O O B-depart_date.today_relative O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me the cheapest one way fares from san diego to miami",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show the flights that leave philadelphia that go to atlanta that leave early on thursday morning",
        "slots": "O O O O O B-fromloc.city_name O O O B-toloc.city_name O O B-depart_time.period_mod O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "now i need flights leaving from atlanta and arriving in philadelphia on wednesday morning",
        "slots": "O O O O O O B-fromloc.city_name O O O B-toloc.city_name O B-arrive_date.day_name B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "first class american flight from philadelphia to dallas on wednesday",
        "slots": "B-class_type I-class_type B-airline_name O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "which airlines fly from boston to washington dc via other cities",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O O O",
        "intent": "airline"
    },
    {
        "utterance": "please show me ground transportation in denver",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "give me all the flights from new york to miami round trip with costs less than 466 dollars",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip O O B-cost_relative O B-fare_amount I-fare_amount",
        "intent": "flight"
    },
    {
        "utterance": "cheapest fare from memphis to seattle",
        "slots": "B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "saturday flights from las vegas to phoenix",
        "slots": "B-depart_date.day_name O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need one first class ticket from dallas fort worth to san francisco",
        "slots": "O O O B-class_type I-class_type O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "can you give me information on all the flights from san francisco no from pittsburgh to san francisco on monday",
        "slots": "O O O O O O O O O O B-fromloc.city_name I-fromloc.city_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "how much does flight ua 281 from boston to denver cost",
        "slots": "O O O O B-airline_code B-flight_number O B-fromloc.city_name O B-toloc.city_name O",
        "intent": "airfare"
    },
    {
        "utterance": "could you tell me the cheapest fare from atlanta to boston on thirty first of august",
        "slots": "O O O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_number I-depart_date.day_number O B-depart_date.month_name",
        "intent": "airfare"
    },
    {
        "utterance": "flights from new york city to montreal",
        "slots": "O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how can i get from the airport in pittsburgh to downtown",
        "slots": "O O O O O O O O B-fromloc.city_name O O",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight from oakland to philadelphia at one in the afternoon arriving at 5 pm",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.time O O B-depart_time.period_of_day O O B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "okay does twa have a flight from dallas to san francisco",
        "slots": "O O B-airline_code O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the seating capacity for the f28",
        "slots": "O O O O O O O B-aircraft_code",
        "intent": "capacity"
    },
    {
        "utterance": "are there any limousines or taxi services available at the boston airport",
        "slots": "O O O B-transport_type B-or B-transport_type O O O O B-airport_name I-airport_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what is fare code q",
        "slots": "O O O O B-fare_basis_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "could you please tell me the cheapest flight from boston to san francisco",
        "slots": "O O O O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me ground transportation in washington dc",
        "slots": "O O O O O B-city_name B-state_code",
        "intent": "ground_service"
    },
    {
        "utterance": "i live in denver and i 'd like to make a trip to pittsburgh",
        "slots": "O O O B-fromloc.city_name O O O O O O O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "fare code y what does that mean",
        "slots": "O O B-fare_basis_code O O O O",
        "intent": "abbreviation"
    },
    {
        "utterance": "list daily flights from denver to baltimore",
        "slots": "O B-flight_days O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to go from denver to atlanta round trip and make a stop at pittsburgh is this possible",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip O O O O O B-stoploc.city_name O O O",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from philadelphia to san francisco with one stop in dallas",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-flight_stop I-flight_stop O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "do you have a flight from salt lake city to st. petersburg on june second",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "is there an afternoon flight from charlotte to minneapolis around 2 pm",
        "slots": "O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from new york to miami leaving on a tuesday",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "information on ground transportation in denver",
        "slots": "O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "list flights between boston and san francisco that serve breakfast",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "is there a nonstop flight from denver to san francisco",
        "slots": "O O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to see all the flights with their fares from denver to atlanta",
        "slots": "O O O O O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "okay and then from pittsburgh i 'd like to travel to atlanta on september fourth",
        "slots": "O O O O B-fromloc.city_name O O O O O O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from san francisco to boston on november tenth",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what is bur",
        "slots": "O O B-airport_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "now i 'd like information on flights from denver to san francisco",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to know the shortest trip between boston and san francisco",
        "slots": "O O O O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like information on flights leaving early monday morning from atlanta to baltimore",
        "slots": "O O O O O O O B-depart_time.period_mod B-depart_date.day_name B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the cheapest one way ticket from baltimore to atlanta",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i would like to find a flight from charlotte north carolina to las vegas i would like a stopover in st. louis",
        "slots": "O O O O O O O O B-fromloc.city_name B-fromloc.state_name I-fromloc.state_name O B-toloc.city_name I-toloc.city_name O O O O O O B-stoploc.city_name I-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all the flights arriving in charlotte around 5 pm next monday please",
        "slots": "O O O O O O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time B-arrive_date.date_relative B-arrive_date.day_name O",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available from boston to washington dc late the twenty fifth or early the twenty sixth",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code B-depart_time.period_mod O B-depart_date.day_number I-depart_date.day_number B-or B-depart_time.period_mod O B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "philadelphia to boston monday",
        "slots": "B-fromloc.city_name O B-toloc.city_name B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show flights from pittsburgh into san francisco",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what does mco stand for",
        "slots": "O O B-airport_code O O",
        "intent": "abbreviation"
    },
    {
        "utterance": "does american airlines fly from philadelphia to dallas",
        "slots": "O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from baltimore to dallas",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want a flight from denver to pittsburgh then from pittsburgh to atlanta then from atlanta back to pittsburgh back to denver",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-fromloc.city_name O B-toloc.city_name O O B-fromloc.city_name O O B-toloc.city_name O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from chicago to kansas city",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest ticket from baltimore to san francisco on friday august thirtieth",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number",
        "intent": "airfare"
    },
    {
        "utterance": "i need to make reservations from denver to boston",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what type of aircraft does eastern fly from atlanta to denver before 6 pm",
        "slots": "O O O O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "aircraft"
    },
    {
        "utterance": "on july twenty third all flights on american airlines from philadelphia to san francisco",
        "slots": "O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how much is the cheapest flight from denver to pittsburgh",
        "slots": "O O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what are the flights from tacoma to san jose also on tuesday the eighteenth of may",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_date.day_name O B-depart_date.day_number O B-depart_date.month_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from denver to philadelphia include fares",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name O O",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there from atlanta to oakland on thursday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "dallas to baltimore monday",
        "slots": "B-fromloc.city_name O B-toloc.city_name B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "are they all nonstop flights from kansas city to st. paul",
        "slots": "O O O B-flight_stop O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all the cities that midwest express serves",
        "slots": "O O O O O O B-airline_name O O",
        "intent": "city"
    },
    {
        "utterance": "what are the flights from washington dc to denver",
        "slots": "O O O O O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the round trip thrift fare on us air from boston to san francisco",
        "slots": "O O O B-round_trip I-round_trip B-class_type O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i need a flight from philadelphia to denver on sunday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights go from boston to pittsburgh after 1205 in the afternoon",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "tell me the flights from baltimore to dallas",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the total number of flights to all airports by delta",
        "slots": "O O O O O O O O O O B-airline_name",
        "intent": "quantity"
    },
    {
        "utterance": "i 'd like information on the least expensive airfare round trip from pittsburgh to boston",
        "slots": "O O O O O O B-cost_relative I-cost_relative O B-round_trip I-round_trip O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me all the lufthansa flights between philadelphia and denver",
        "slots": "O O O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how many passengers can a boeing 737 hold",
        "slots": "O O O O O O B-aircraft_code O",
        "intent": "capacity"
    },
    {
        "utterance": "one way",
        "slots": "B-round_trip I-round_trip",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights on delta to atlanta in the morning",
        "slots": "O O O O O B-airline_name O B-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "which airlines have flights between charlotte and newark",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "list all flights from atlanta to dallas on friday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "how long does it take to get from kansas city to st. paul",
        "slots": "O O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "distance"
    },
    {
        "utterance": "show me flights from milwaukee to orlando on thursday morning",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there between washington dc and san francisco after 6 pm on wednesday",
        "slots": "O O O O O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name I-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to fly from minneapolis to long beach two days from today in the early morning",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_date.date_relative O O B-depart_date.today_relative O O B-depart_time.period_of_day B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "can you tell me what airline flies between denver and san francisco",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "please list only united airlines flights between denver and boston",
        "slots": "O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight from san francisco to pittsburgh on friday morning after 10 o'clock",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like a ticket from denver to atlanta with a stopover in pittsburgh is this possible",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name O O O",
        "intent": "airfare"
    },
    {
        "utterance": "find me a flight from boston to san francisco with layover in denver on united",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-stoploc.city_name O B-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to arrange a flight from denver to pittsburgh",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all daily flights from milwaukee to orlando",
        "slots": "O O O B-flight_days O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need to fly from boston to baltimore please give me the times of your flights in the morning before 8 o'clock",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-flight_time I-flight_time I-flight_time I-flight_time O O B-depart_time.period_of_day B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from denver to oakland",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show all flights from baltimore to dallas on monday evening and the cost of each flight",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "show me ground transportation in philadelphia on monday morning",
        "slots": "O O O O O B-city_name O B-day_name B-period_of_day",
        "intent": "ground_service"
    },
    {
        "utterance": "show me the flights from san diego to newark",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from phoenix to milwaukee next wednesday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.date_relative B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "could i have a listing of flights leaving boston going to baltimore leaving wednesday after 2100",
        "slots": "O O O O O O O O B-fromloc.city_name O O B-toloc.city_name O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "does any airline have an afternoon flight from boston to oakland",
        "slots": "O O O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "show me the least expensive flight leaving miami on sunday after 12 o'clock noon and arriving cleveland",
        "slots": "O O O B-cost_relative I-cost_relative O O B-fromloc.city_name O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time I-depart_time.time I-depart_time.time O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "all flights before 10 am boston denver",
        "slots": "O O B-depart_time.time_relative B-depart_time.time I-depart_time.time B-fromloc.city_name B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest fare between atlanta and san francisco",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what is the cheapest flight from boston to san francisco",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from baltimore to washington dc",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "do you have any airlines that would stop at denver on the way from baltimore to san francisco",
        "slots": "O O O O O O O O O B-stoploc.city_name O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "show me fares from houston to las vegas",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what are the flights from boston to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights do you have from boston to pittsburgh on wednesday of next week after 6 pm",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-depart_date.date_relative O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "is there a direct flight from atlanta to philadelphia that arrives in philadelphia around 12 noon",
        "slots": "O O O B-connect O O B-fromloc.city_name O B-toloc.city_name O O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from all airports to love field",
        "slots": "O O O O O O O O B-toloc.airport_name I-toloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the coach economy class night service from boston to san francisco",
        "slots": "O O O B-class_type B-economy I-economy B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the earliest flights from atlanta to denver on a monday",
        "slots": "O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from pittsburgh to philadelphia",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to book a flight from chicago into seattle on june first on continental airlines",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from los angeles to charlotte today",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-depart_date.today_relative",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there from phoenix to milwaukee",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights leave san francisco after 8 pm and go to dallas fort worth",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O O O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cost of limousine service in philadelphia",
        "slots": "O O O O O B-transport_type O O B-city_name",
        "intent": "ground_fare"
    },
    {
        "utterance": "from denver to pittsburgh on april twenty first i need the cheapest flight",
        "slots": "O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O O O B-cost_relative O",
        "intent": "flight"
    },
    {
        "utterance": "show me the fare for us flight 3357 from philadelphia to baltimore",
        "slots": "O O O O O B-airline_code O B-flight_number O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i would like a flight from philadelphia to dallas that makes a stop in atlanta",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what ground transportation is available in baltimore for the day after tomorrow",
        "slots": "O O O O O O B-city_name O B-today_relative I-today_relative I-today_relative I-today_relative",
        "intent": "ground_service"
    },
    {
        "utterance": "i 'm looking for a flight from oakland to denver with a stopover in dallas fort worth",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name I-stoploc.city_name I-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "round trip fares from baltimore to philadelphia under 1000 dollars",
        "slots": "B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name B-cost_relative B-fare_amount I-fare_amount",
        "intent": "airfare"
    },
    {
        "utterance": "find a flight from washington dc to san francisco on tuesday",
        "slots": "O O O O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from tampa to montreal",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights from washington dc to tampa florida",
        "slots": "O O O O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name B-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the last flight from san francisco to boston this wednesday",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to fly continental airlines between boston and philadelphia",
        "slots": "O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how many stops on continental 1765 from boston to san francisco",
        "slots": "O O O O B-airline_name B-flight_number O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "quantity"
    },
    {
        "utterance": "what flights are there from baltimore to newark",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'm interested in round trip flights from boston to washington",
        "slots": "O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the type of aircraft for united flight 21",
        "slots": "O O O O O O O B-airline_name O B-flight_number",
        "intent": "aircraft"
    },
    {
        "utterance": "what is the cost of flights from denver to san francisco",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what flights from tacoma to orlando on saturday",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show flights between boston and philadelphia",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what ground transportation is there in dallas",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what flights does american airlines have from boston to dallas",
        "slots": "O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the first class fare for a round trip dallas to denver",
        "slots": "O O O B-class_type I-class_type O O O B-round_trip I-round_trip B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "am flights from dallas to san francisco",
        "slots": "B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is fare code b the same as business class",
        "slots": "O O O B-fare_basis_code O B-mod O B-class_type I-class_type",
        "intent": "abbreviation"
    },
    {
        "utterance": "i am also interested in a flight that runs from st. louis to las vegas",
        "slots": "O O O O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "do you fly a 747 from baltimore to san francisco",
        "slots": "O O O O B-aircraft_code O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is it possible for me to fly from baltimore to san francisco",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which flight is a one way fare at 329 dollars from denver to pittsburgh",
        "slots": "O O O O B-round_trip I-round_trip O O B-fare_amount I-fare_amount O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from atlanta to charlotte north carolina next monday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_name I-toloc.state_name B-depart_date.date_relative B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like the first flight into houston from dallas on march first and the last flight from houston to dallas on march first",
        "slots": "O O O O B-flight_mod O O B-toloc.city_name O B-fromloc.city_name O B-arrive_date.month_name B-arrive_date.day_number O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "from toronto to atlanta in the afternoon",
        "slots": "O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i want to fly boston to dallas",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight from philadelphia to dallas",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from indianapolis to memphis",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the cheapest flight from san francisco to boston",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what car rentals are available next sunday from denver airport",
        "slots": "O B-transport_type I-transport_type O O B-depart_date.date_relative B-depart_date.day_name O B-fromloc.airport_name I-fromloc.airport_name",
        "intent": "ground_service"
    },
    {
        "utterance": "can you list flights from boston to washington with the lowest one way fares that leave on saturday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-cost_relative B-round_trip I-round_trip O O O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "does united airlines provide any first class flights from denver to baltimore",
        "slots": "O B-airline_name I-airline_name O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the least expensive way to fly from philadelphia to san francisco",
        "slots": "O O O B-cost_relative I-cost_relative O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "then list the flights from atlanta to philadelphia early wednesday morning nonstop",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.period_mod B-depart_date.day_name B-depart_time.period_of_day B-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "show me all the united airlines flights leaving dallas",
        "slots": "O O O O B-airline_name I-airline_name O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the shortest flight from san jose to houston",
        "slots": "O O B-flight_mod O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me a flight from newark to tampa on friday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "does american airlines offer a flight from boston to oakland which stops in denver",
        "slots": "O B-airline_name I-airline_name O O O O B-fromloc.city_name O B-toloc.city_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from kansas city to cleveland and price",
        "slots": "O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O",
        "intent": "flight"
    },
    {
        "utterance": "which airlines fly into and out of denver",
        "slots": "O O O O O O O B-city_name",
        "intent": "airline"
    },
    {
        "utterance": "list the flights and time of arrival for flights arriving in dallas fort worth from boston before noon",
        "slots": "O O O O B-flight_time I-flight_time I-flight_time O O O O B-toloc.city_name I-toloc.city_name I-toloc.city_name O B-fromloc.city_name B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight from philadelphia to dallas first class",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name B-class_type I-class_type",
        "intent": "flight"
    },
    {
        "utterance": "what does ord mean",
        "slots": "O O B-airport_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "all flights from boston to washington dc on november eleventh before 10 am",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O B-depart_date.month_name B-depart_date.day_number B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from denver to philadelphia on a saturday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "please list information regarding san francisco airport",
        "slots": "O O O O B-airport_name I-airport_name I-airport_name",
        "intent": "airport"
    },
    {
        "utterance": "i 'd like to have some information on a ticket from denver to atlanta with a stop in pittsburgh",
        "slots": "O O O O O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what is the least expensive flight from denver to atlanta",
        "slots": "O O O B-cost_relative I-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how many flights arrive at general mitchell international",
        "slots": "O O O O O B-toloc.airport_name I-toloc.airport_name I-toloc.airport_name",
        "intent": "quantity"
    },
    {
        "utterance": "show me flights from atlanta to washington dc on wednesday evening",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i want to fly from atlanta to philadelphia",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which of the flights from pittsburgh to baltimore on july twenty fifth 1991 carries the smallest number of passengers",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number B-depart_date.year O O B-mod O O O",
        "intent": "flight"
    },
    {
        "utterance": "could you please find me a nonstop flight from atlanta to baltimore on a boeing 757 arriving at 7 pm",
        "slots": "O O O O O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name O O O B-aircraft_code O O B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "philadelphia to san francisco please",
        "slots": "B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "how many delta flights leave from washington",
        "slots": "O O B-airline_name O O O B-fromloc.city_name",
        "intent": "quantity"
    },
    {
        "utterance": "show me the afternoon flights from washington to boston",
        "slots": "O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the lowest fare for a round trip flight from baltimore to dallas",
        "slots": "O O O B-cost_relative O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me flights from denver to philadelphia on a monday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "okay what flights are there us air from orlando to cleveland leaving in the afternoon",
        "slots": "O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name O O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i want to fly from milwaukee to orlando",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which are the flights from denver to baltimore or washington dc",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-or B-toloc.city_name B-toloc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "i am interested in booking an early flight from dallas into houston and returning in the late evening",
        "slots": "O O O O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O O O O B-return_time.period_mod B-return_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what is the airfare between denver and pittsburgh",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "flights from indianapolis to seattle",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "hi i need to get a flight from memphis to salt lake city departing before 10 am",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "flight from dallas to oakland california on monday",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "please list the flights leaving from st. louis to st. paul after 10 am",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what is airline us",
        "slots": "O O O B-airline_code",
        "intent": "airline"
    },
    {
        "utterance": "show me all direct flights from san francisco to boston departing before noon",
        "slots": "O O O B-connect O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i would like to find a flight that goes from la guardia airport to san jose i would like the flight to be on united airlines and arrive in san jose around 10 pm",
        "slots": "O O O O O O O O O O B-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name O B-toloc.city_name I-toloc.city_name O O O O O O O O B-airline_name I-airline_name O O O B-toloc.city_name I-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "which airlines fly from boston to san francisco",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "what kind of aircraft is used on a flight from cleveland to dallas",
        "slots": "O O O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "aircraft"
    },
    {
        "utterance": "show me flights between milwaukee and phoenix on saturday or sunday american airlines",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-or B-depart_date.day_name B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "is breakfast served on flight ua 343 from boston to denver coach class",
        "slots": "O B-meal_description O O O B-airline_code B-flight_number O B-fromloc.city_name O B-toloc.city_name B-class_type I-class_type",
        "intent": "flight"
    },
    {
        "utterance": "tell me about flights on american airlines from dallas to san francisco on june twenty ninth",
        "slots": "O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "now i want to see return flights from miami to new york",
        "slots": "O O O O O B-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what ground transportation is available in dallas tomorrow",
        "slots": "O O O O O O B-city_name B-today_relative",
        "intent": "ground_service"
    },
    {
        "utterance": "show me all the direct flights from baltimore to atlanta",
        "slots": "O O O O B-connect O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show flights between philadelphia and denver on september sixteenth",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "explain fare code qx",
        "slots": "O O O B-fare_basis_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "what type of plane is an m80",
        "slots": "O O O O O O B-aircraft_code",
        "intent": "aircraft"
    },
    {
        "utterance": "which flights on northwest and united airlines stop in denver before noon",
        "slots": "O O O B-airline_name O B-airline_name I-airline_name O O B-stoploc.city_name B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me airports in washington dc",
        "slots": "O O O O B-city_name B-state_code",
        "intent": "airport"
    },
    {
        "utterance": "find a nonstop flight between boston and washington arriving in washington around 5 pm",
        "slots": "O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i need 2 first class tickets from dallas fort worth to san francisco",
        "slots": "O O O B-class_type I-class_type O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me the cheapest one way flight from san francisco to boston leaving san francisco after 9 pm",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-fromloc.city_name I-fromloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me the nonstop flights from dallas to houston",
        "slots": "O O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "all flights from pittsburgh to philadelphia that arrive at 6 o'clock next tuesday",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O O O B-arrive_time.time I-arrive_time.time B-arrive_date.date_relative B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "please list the flights from new york to los angeles",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "can you give me the evening flight on wednesday from washington to atlanta again",
        "slots": "O O O O O B-depart_time.period_of_day O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "what 's the cheapest flight from denver to pittsburgh",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the latest flights that i can take from baltimore to boston",
        "slots": "O O O B-flight_mod O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to see all flights from baltimore to philadelphia",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is there ground transportation from atlanta airport to downtown atlanta",
        "slots": "O O O O O B-fromloc.airport_name I-fromloc.airport_name O O B-toloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "okay what i 'd like to do on this one is go from washington to atlanta i want a nonstop and i 'd like to leave around 5 pm",
        "slots": "O O O O O O O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-flight_stop O O O O O O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "list all the flights from atlanta to philadelphia on august the first",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name O B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what flights from newark to los angeles on wednesday",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "find the earliest flight from boston to oakland that serves breakfast",
        "slots": "O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from san francisco to washington dc",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-toloc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "what flights from st. paul to kansas city on friday with a meal",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name O O B-meal",
        "intent": "flight"
    },
    {
        "utterance": "round trip fares from baltimore to philadelphia less than 1000 dollars round trip fares from denver to philadelphia less than 1000 dollars round trip fares from pittsburgh to philadelphia less than 1000 dollars",
        "slots": "B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name B-cost_relative O B-fare_amount I-fare_amount B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name B-cost_relative O B-fare_amount I-fare_amount B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name B-cost_relative O B-fare_amount I-fare_amount",
        "intent": "airfare"
    },
    {
        "utterance": "what flights are available from boston to denver on wednesday in early morning",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-depart_time.period_of_day B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what flights leave pittsburgh after 5 pm on thursday and arrive in los angeles",
        "slots": "O O O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-depart_date.day_name O O O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "cheapest flight from miami to indianapolis",
        "slots": "B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the sunday flights from oakland to washington dc",
        "slots": "O O O B-depart_date.day_name O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "what kinds of planes are used by american airlines",
        "slots": "O O O O O O O B-airline_name I-airline_name",
        "intent": "aircraft"
    },
    {
        "utterance": "information on flights from denver to philadelphia",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which airlines serve pittsburgh",
        "slots": "O O O B-city_name",
        "intent": "airline"
    },
    {
        "utterance": "show me all flights from boston to denver which arrive before noon on wednesday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_time.time_relative B-arrive_time.time O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a list of late afternoon flights from chicago to milwaukee",
        "slots": "O O O O O B-depart_time.period_of_day I-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "repeating leaving denver to san francisco before 10 am what type of aircraft is used",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O O O O O O",
        "intent": "aircraft"
    },
    {
        "utterance": "ground san francisco",
        "slots": "O B-city_name I-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what are the flights from baltimore to dallas on sunday night",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what are fare codes qw and qx",
        "slots": "O O O O B-fare_basis_code O B-fare_basis_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "i want to leave oakland and arrive in boston at 5 o'clock in the afternoon",
        "slots": "O O O O B-fromloc.city_name O O O B-toloc.city_name O B-arrive_time.time I-arrive_time.time O O B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from pittsburgh to atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please give me a flight from pittsburgh to san francisco monday",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "give me the earliest flight tomorrow on united airlines from st. petersburg to milwaukee",
        "slots": "O O O B-flight_mod O B-depart_date.today_relative O B-airline_name I-airline_name O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is united airlines service between boston and san francisco",
        "slots": "O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from kansas city to chicago arrive at chicago at 7 pm next wednesday",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-toloc.city_name O B-arrive_time.time I-arrive_time.time B-arrive_date.date_relative B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "united airlines flights stopping in denver",
        "slots": "B-airline_name I-airline_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what airport in new york is closest to downtown",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-mod O O",
        "intent": "airport"
    },
    {
        "utterance": "which companies fly between boston and oakland",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "listing of all first class flights from washington to san francisco",
        "slots": "O O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how much does the american airlines flight 71 from dallas to san francisco cost",
        "slots": "O O O O B-airline_name I-airline_name O B-flight_number O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O",
        "intent": "airfare"
    },
    {
        "utterance": "how many first class flights does united have leaving from all cities today",
        "slots": "O O B-class_type I-class_type O O B-airline_name O O O O O B-depart_date.today_relative",
        "intent": "quantity"
    },
    {
        "utterance": "what is the yn code",
        "slots": "O O O B-fare_basis_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "flights from atlanta to san francisco august second",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what flights from burbank to milwaukee leave burbank tomorrow",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-fromloc.city_name B-depart_date.today_relative",
        "intent": "flight"
    },
    {
        "utterance": "does dl stand for delta",
        "slots": "O B-airline_code O O B-airline_name",
        "intent": "abbreviation"
    },
    {
        "utterance": "please give me flights from atlanta to boston on wednesday afternoon and thursday morning",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what northwest airline flights leave denver before noon",
        "slots": "O B-airline_name I-airline_name O O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what ground transportation is available in san francisco",
        "slots": "O O O O O O B-city_name I-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what do you have tomorrow morning from pittsburgh to atlanta",
        "slots": "O O O O B-depart_date.today_relative B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from atlanta to boston",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what airlines fly from new york to milwaukee to los angeles",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-stoploc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "i have two friends that would like to visit me on wednesday here in washington dc one of them lives in denver and the other lives in miami",
        "slots": "O O O O O O O O O O O B-depart_date.day_name O O B-toloc.city_name B-toloc.state_code O O O O O B-fromloc.city_name O O O O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "now i need a flight from detroit to san diego leaving tuesday evening",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "do you have ground transportation between airport and downtown in boston",
        "slots": "O O O O O O O O O O B-toloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i want to fly from boston to atlanta i would like the cheapest fare please",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-cost_relative O O",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like a list of all the flights from san francisco to pittsburgh on sunday please",
        "slots": "O O O O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O",
        "intent": "flight"
    },
    {
        "utterance": "show me first class fares from dallas to baltimore",
        "slots": "O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me airlines going from pittsburgh going to denver and then continuing to san francisco on monday",
        "slots": "O O O O O B-fromloc.city_name O O B-toloc.city_name O O O O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "airline"
    },
    {
        "utterance": "give me nonstop flights from new york city to las vegas",
        "slots": "O O B-flight_stop O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to fly nonstop from atlanta to baltimore and get there at 7 pm",
        "slots": "O O O O O B-flight_stop O B-fromloc.city_name O B-toloc.city_name O O O O B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from denver to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "explain the restriction ap 57",
        "slots": "O O O B-restriction_code I-restriction_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "please give me the earliest flight tomorrow from st. petersburg to milwaukee",
        "slots": "O O O O B-flight_mod O B-depart_date.today_relative O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how about flights leaving san francisco and arriving in boston for any day",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O O O B-toloc.city_name O O O",
        "intent": "flight"
    },
    {
        "utterance": "are there any flights on june eleventh from st. petersburg to milwaukee",
        "slots": "O O O O O B-depart_date.month_name B-depart_date.day_number O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "all flights from pittsburgh to philadelphia next tuesday arriving near 6 o'clock",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.date_relative B-depart_date.day_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights arriving on baltimore on june fourteenth",
        "slots": "O O O O O O B-toloc.city_name O B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight from washington to boston flight 324 on august twentieth",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-flight_number O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from boston to philadelphia",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'm requesting flight information on a flight from san francisco to pittsburgh on friday",
        "slots": "O O O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what airlines fly between boston and san francisco",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "show me the flights from boston to atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to see flights from baltimore to atlanta that arrive before noon",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "does midwest express serve indianapolis",
        "slots": "O B-airline_name O O B-city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the flights arriving in baltimore from pittsburgh on august third",
        "slots": "O O O O O B-toloc.city_name O B-fromloc.city_name O B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me the dinner flights from baltimore to oakland",
        "slots": "O O O B-meal_description O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "okay just on november twenty third i want to fly from atlanta to denver and i need to know what flights are available",
        "slots": "O O O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O O O O O B-fromloc.city_name O B-toloc.city_name O O O O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "show all flights and fares from denver to san francisco",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight+airfare"
    },
    {
        "utterance": "what is the least expensive flight from baltimore to san francisco",
        "slots": "O O O B-cost_relative I-cost_relative O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please show me flights from san francisco to dallas",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "find me the latest flight leaving atlanta august seventh and arriving in denver",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name B-depart_date.month_name B-depart_date.day_number O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "find travel arrangements for a round trip flight from boston to pittsburgh",
        "slots": "O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list the flights from philadelphia to toronto",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "display all flights from baltimore to dallas on july twenty ninth",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what afternoon flights are available from denver to san francisco on wednesdays",
        "slots": "O B-depart_time.period_of_day O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight from boston to atlanta",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flight from detroit to westchester county with the highest one way fare",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-cost_relative B-round_trip I-round_trip O",
        "intent": "flight"
    },
    {
        "utterance": "may i have a list of flights going from boston to denver on the twenty ninth of july",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_number I-depart_date.day_number O B-depart_date.month_name",
        "intent": "flight"
    },
    {
        "utterance": "what are connecting flights from chicago into seattle on june fifth",
        "slots": "O O B-connect O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from boston to denver which arrive in denver wednesday before noon",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-toloc.city_name B-arrive_date.day_name B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "does lufthansa fly between boston and oakland",
        "slots": "O B-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are all flights from boston to pittsburgh on wednesdays",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from boston to detroit",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "of all airlines which airline has the most arrivals in atlanta",
        "slots": "O O O O O O O B-mod O O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "round trip fares from baltimore to philadelphia under 1000 dollars",
        "slots": "B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name B-cost_relative B-fare_amount I-fare_amount",
        "intent": "airfare"
    },
    {
        "utterance": "show me the cheapest round trip fares from san francisco to salt lake city",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what is fare class h",
        "slots": "O O O O B-fare_basis_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "i would like information on ground transportation in the city of atlanta from airport to downtown",
        "slots": "O O O O O O O O O O O B-city_name O O O O",
        "intent": "ground_service"
    },
    {
        "utterance": "can you list all nonstop flights departing from st. petersburg and arriving in charlotte",
        "slots": "O O O O B-flight_stop O O O B-fromloc.city_name I-fromloc.city_name O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the list of flights from dallas to baltimore on american and delta airlines",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to fly from philadelphia to dallas and make a stopover in atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the one way flights from detroit to westchester county",
        "slots": "O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show flights from pittsburgh to oakland connecting through denver",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name B-connect O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to go from boston to washington on monday morning",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "list all flights from pittsburgh to philadelphia",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from new york to montreal thursday may six arriving before noon",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number O B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what cities are served by canadian airlines international",
        "slots": "O O O O O B-airline_name I-airline_name I-airline_name",
        "intent": "city"
    },
    {
        "utterance": "i would like the fare on the us air 1039 from denver to pittsburgh on april twenty",
        "slots": "O O O O O O O B-airline_name I-airline_name B-flight_number O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "airfare"
    },
    {
        "utterance": "what flights leave san francisco on monday night and arrive at atlanta later in the evening",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-depart_date.day_name B-depart_time.period_of_day O O O B-toloc.city_name B-arrive_time.time_relative O O B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me all canadian airlines flights from toronto",
        "slots": "O O O B-airline_name I-airline_name O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all the united flights from boston to denver",
        "slots": "O O O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from denver to salt lake city",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights out of boston on june twentieth that have business class",
        "slots": "O O O O O O B-fromloc.city_name O B-depart_date.month_name B-depart_date.day_number O O B-class_type I-class_type",
        "intent": "flight"
    },
    {
        "utterance": "give me all nonstops from new york to vegas that arrive on a sunday",
        "slots": "O O O B-flight_stop O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to arrange a flight from pittsburgh to atlanta",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the flight schedule of the f28 from pittsburgh to baltimore",
        "slots": "O O O B-flight_time I-flight_time O O B-aircraft_code O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight_time"
    },
    {
        "utterance": "what is as",
        "slots": "O O B-airline_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "is there a flight between washington dc and san francisco on us air at 8 am",
        "slots": "O O O O O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name O B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what are the fares for flights between atlanta and dfw provided by american airlines",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.airport_code O O B-airline_name I-airline_name",
        "intent": "airfare"
    },
    {
        "utterance": "i also need to go to san francisco on wednesday evening from dallas",
        "slots": "O O O O O O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how many airlines fly from new york to los angeles by way of milwaukee",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-stoploc.city_name",
        "intent": "quantity"
    },
    {
        "utterance": "does american airlines flight from long beach to st. louis stopping in dallas serve lunch",
        "slots": "O B-airline_name I-airline_name O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-stoploc.city_name O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "find travel arrangements for a round trip flight from boston to pittsburgh arriving after 8 pm",
        "slots": "O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "please give me flight schedules from pittsburgh to philadelphia",
        "slots": "O O O B-flight_time I-flight_time O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me all the flights from new york to miami round trip",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to know the price of first class seats from atlanta to san francisco",
        "slots": "O O O O O O O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i would like to fly from atlanta to denver on september fifteenth",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from pittsburgh to baltimore tomorrow",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.today_relative",
        "intent": "flight"
    },
    {
        "utterance": "which airlines have connections between pittsburgh and baltimore",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "what does y mean",
        "slots": "O O B-fare_basis_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "flights between new york and san jose",
        "slots": "O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to fly from pittsburgh to san francisco",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what does ea mean",
        "slots": "O O B-airline_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "how much does it cost to fly from atlanta to san francisco",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "ground transportation minneapolis",
        "slots": "O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "list all round trip flights between indianapolis and orlando on the twenty seventh of december",
        "slots": "O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_number I-depart_date.day_number O B-depart_date.month_name",
        "intent": "flight"
    },
    {
        "utterance": "i want wednesday flights from atlanta to washington dc",
        "slots": "O O B-depart_date.day_name O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "what is the ground transportation available in fort worth",
        "slots": "O O O O O O O B-city_name I-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what flights does american airlines fly from philadelphia to dallas",
        "slots": "O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights to san francisco arriving before 1",
        "slots": "O O O O B-toloc.city_name I-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "please list the flight times from boston to pittsburgh",
        "slots": "O O O B-flight_time I-flight_time O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight_time"
    },
    {
        "utterance": "i 'd like to know what flights united airline has from dallas to san francisco",
        "slots": "O O O O O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the latest flight in the day from baltimore to atlanta",
        "slots": "O O O B-flight_mod O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight to seattle leaving from baltimore making a stop in minneapolis",
        "slots": "O O O O O B-toloc.city_name O O B-fromloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need to go from boston to denver and then to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me return flights from philadelphia to san francisco for december third",
        "slots": "O O B-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what are the classes of service for american airlines",
        "slots": "O O O O O O O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "please list all flights from philadelphia to boston",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "early morning flights between cincinnati and tampa",
        "slots": "B-depart_time.period_of_day B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list flights from philadelphia to dallas",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list fares for all the flights from atlanta to philadelphia on august the first",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name O B-depart_date.day_number",
        "intent": "airfare"
    },
    {
        "utterance": "delta flights from san francisco please",
        "slots": "B-airline_name O O B-fromloc.city_name I-fromloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from boston to denver",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what does hou mean",
        "slots": "O O B-airport_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "find a flight from long beach to st. louis stopping in dallas",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "all flights from long beach to phoenix",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "only show continental flights",
        "slots": "O O B-airline_name O",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from long beach to st. louis stopping in dallas the flight should also serve lunch",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-stoploc.city_name O O O O O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "find me the latest return flight from atlanta to boston on the same day",
        "slots": "O O O B-flight_mod O O O B-fromloc.city_name O B-toloc.city_name O O O B-return_date.date_relative",
        "intent": "flight"
    },
    {
        "utterance": "what 're the flights from new york city to las vegas that arrive on a sunday",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "from seattle to salt lake city",
        "slots": "O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the cheapest one way tickets from atlanta to dallas",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i would like to know flights on june fifteenth from long beach to columbus after 12 noon please",
        "slots": "O O O O O O O B-depart_date.month_name B-depart_date.day_number O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O",
        "intent": "flight"
    },
    {
        "utterance": "flights from denver to chicago on sunday on continental",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "which airlines fly between boston and philadelphia",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "give me the cheapest one way flights between boston and philadelphia which arrive after noon on a tuesday",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_time.time_relative B-arrive_time.time O O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what nonstop flights are available from oakland to philadelphia arriving between 5 and 6 pm",
        "slots": "O B-flight_stop O O O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_time.start_time O B-arrive_time.end_time I-arrive_time.end_time",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from san francisco to la guardia nonstop",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.airport_name I-toloc.airport_name B-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "please find me a flight between boston and philadelphia that arrives in philadelphia close to 5 pm",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-toloc.city_name B-arrive_time.time_relative O B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "flying from pittsburgh to philadelphia on us air",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "give me the lowest fare from atlanta to denver on may seventh please",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number O",
        "intent": "airfare"
    },
    {
        "utterance": "pm flights dallas to atlanta",
        "slots": "B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "from phoenix to las vegas on saturday",
        "slots": "O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from philadelphia to boston",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "information on flights from atlanta to washington dc departing on thursday before 9 am",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what is your last trip on august twenty seventh from washington to boston",
        "slots": "O O O B-flight_mod O O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from atlanta to bwi",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.airport_code",
        "intent": "flight"
    },
    {
        "utterance": "show me what flights are available from baltimore to dallas with economy fares",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-economy O",
        "intent": "flight"
    },
    {
        "utterance": "what are all flights from san francisco to philadelphia with stops in pittsburgh",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list flights from boston to pittsburgh leaving early in the morning on august sixth",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.period_mod O O B-depart_time.period_of_day O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "flights from phoenix to newark",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what afternoon flights are available from pittsburgh to atlanta on a weekday",
        "slots": "O B-depart_time.period_of_day O O O O B-fromloc.city_name O B-toloc.city_name O O B-flight_mod",
        "intent": "flight"
    },
    {
        "utterance": "find me the earliest boston departure and the latest atlanta return trip so that i can be on the ground the maximum amount of time in atlanta and return to boston on the same day",
        "slots": "O O O B-flight_mod B-fromloc.city_name O O O B-flight_mod B-fromloc.city_name O O O O O O O O O O O O O O O O B-toloc.city_name O O O B-toloc.city_name O O O B-return_date.date_relative",
        "intent": "flight"
    },
    {
        "utterance": "show me the nonstop flights from dallas to houston",
        "slots": "O O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "define airline us",
        "slots": "O O B-airline_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "i need to fly from baltimore to dallas on tuesday evening",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to make a round trip from la to newark by way of charlotte",
        "slots": "O O O O O O B-round_trip I-round_trip O B-fromloc.city_name O B-toloc.city_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what first class airplane goes from philadelphia to san francisco and stops in dallas in the afternoon on monday",
        "slots": "O B-class_type I-class_type O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-stoploc.city_name O O B-depart_time.period_of_day O B-depart_date.day_name",
        "intent": "aircraft"
    },
    {
        "utterance": "what 's the lowest round trip fare from dallas to atlanta",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i am interested in a flight on american airlines from dallas to washington",
        "slots": "O O O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "yes i live in washington and i want to make a trip to san francisco which airlines may i use for this trip",
        "slots": "O O O O B-fromloc.city_name O O O O O O O O B-toloc.city_name I-toloc.city_name O O O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "list the flights from philadelphia to san francisco which have a layover in dallas",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the most expensive flight from boston to dallas",
        "slots": "O O O B-cost_relative I-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from milwaukee to san jose on wednesday on american airlines",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from boston to dallas fort worth both direct and connecting that arrive before noon",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name O O O O O O B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "list all nonstop flights from newark to tampa leaving on friday",
        "slots": "O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "list list flights between oakland and denver",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "can you please show me the flights from pittsburgh to boston on wednesday of next week that arrive before noon",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-depart_date.date_relative O O O B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me the latest flight to love field",
        "slots": "O O O B-flight_mod O O B-toloc.airport_name I-toloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like information on ground transportation city of boston between airport and downtown",
        "slots": "O O O O O O O B-city_name I-city_name I-city_name O O O O",
        "intent": "ground_service"
    },
    {
        "utterance": "show me the flights from washington to boston",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from boston to fort worth on the morning of july tenth 1991",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_time.period_of_day O B-depart_date.month_name B-depart_date.day_number B-depart_date.year",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to see all flights from denver to philadelphia",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest fare for a one way flight from boston to atlanta",
        "slots": "O O O B-cost_relative O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "is there a plane from boston to washington",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "aircraft"
    },
    {
        "utterance": "show me the one way fares from san diego to miami nonstop",
        "slots": "O O O B-round_trip I-round_trip O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-flight_stop",
        "intent": "airfare"
    },
    {
        "utterance": "fly from denver to philadelphia on continental",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name O B-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the lowest one way fares from atlanta to pittsburgh",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "on november twenty third what flights are available between boston and denver",
        "slots": "O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me sunday nonstop flights from memphis to las vegas",
        "slots": "O O B-depart_date.day_name B-flight_stop O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the costs of car rental in dallas",
        "slots": "O O O O O B-transport_type I-transport_type O B-city_name",
        "intent": "ground_fare"
    },
    {
        "utterance": "i need to fly from boston to denver this monday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the fare going from atlanta to boston one way on november seventh",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip O B-depart_date.month_name B-depart_date.day_number",
        "intent": "airfare"
    },
    {
        "utterance": "show me the flights from love field",
        "slots": "O O O O O B-fromloc.airport_name I-fromloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there from baltimore to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest flight from dallas to baltimore",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the latest flight from salt lake city to phoenix",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest united airlines flight flying from denver to baltimore and arriving on july fourth",
        "slots": "O O O B-flight_mod B-airline_name I-airline_name O O O B-fromloc.city_name O B-toloc.city_name O O O B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what is the first flight that travels from atlanta to baltimore that serves lunch",
        "slots": "O O O B-flight_mod O O O O B-fromloc.city_name O B-toloc.city_name O O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "flight information on january twenty third 1992 from denver to san francisco",
        "slots": "O O O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number B-depart_date.year O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights available between 10 am and 3 pm between pittsburgh and fort worth",
        "slots": "O O O O O O B-depart_time.start_time I-depart_time.start_time O B-depart_time.end_time I-depart_time.end_time O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all the flights that arrive in baltimore in the evening",
        "slots": "O O O O O O O O B-toloc.city_name O O B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from montreal to nashville",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all daily flights between boston and oakland and between oakland and boston using delta airlines",
        "slots": "O O B-flight_days O O B-fromloc.city_name O B-toloc.city_name O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from cincinnati to tampa",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to book a flight from denver to pittsburgh and i 'd like to go on eastern airlines",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O O O O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the classes of service on delta airlines",
        "slots": "O O O O O O O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the costs of flights from dallas to boston tomorrow",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.today_relative",
        "intent": "airfare"
    },
    {
        "utterance": "how much does dl 746 cost",
        "slots": "O O O B-airline_code B-flight_number O",
        "intent": "airfare"
    },
    {
        "utterance": "show me the flights from denver to atlanta on friday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a late flight from san francisco to boston on wednesday",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what ground transport is available in baltimore",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show me the flights from denver to westchester county",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "does american airlines fly from pittsburgh to atlanta",
        "slots": "O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how many flights does continental airlines have with a class of service code f",
        "slots": "O O O O B-airline_name I-airline_name O O O O O O O B-fare_basis_code",
        "intent": "quantity"
    },
    {
        "utterance": "how many fares are there one way from tacoma to montreal",
        "slots": "O O O O O B-round_trip I-round_trip O B-fromloc.city_name O B-toloc.city_name",
        "intent": "quantity"
    },
    {
        "utterance": "what 's the smallest plane flying from pittsburgh to baltimore on december seventeenth",
        "slots": "O O O B-mod O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "aircraft"
    },
    {
        "utterance": "does midwest express serve cleveland",
        "slots": "O B-airline_name O O B-city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me a flight from baltimore to newark that arrives as early as possible",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "list all flights on continental from denver to chicago on sunday which depart after 934 pm",
        "slots": "O O O O B-airline_name O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "please list the flights for me that leave dallas on tuesday morning and arrive in atlanta",
        "slots": "O O O O O O O O B-fromloc.city_name O B-depart_date.day_name B-depart_time.period_of_day O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "ground transportation in denver",
        "slots": "O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "does flight ua 270 from denver to philadelphia have a meal",
        "slots": "O O B-airline_code B-flight_number O B-fromloc.city_name O B-toloc.city_name O O B-meal",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to leave atlanta in the afternoon and arrive in philadelphia at 5 pm",
        "slots": "O O O O O B-fromloc.city_name O O B-depart_time.period_of_day O O O B-toloc.city_name O B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what 's the earliest flight from san francisco to boston",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flight from cleveland to nashville",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from pittsburgh to atlanta on monday afternoon",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from montreal to chicago",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the first flight from boston to san francisco on saturday",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available from denver to dallas fort worth in the afternoons",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "list all the takeoffs and landings at general mitchell airport",
        "slots": "O O O O O O O B-airport_name I-airport_name I-airport_name",
        "intent": "flight"
    },
    {
        "utterance": "show all flights with first class from baltimore to dallas",
        "slots": "O O O O B-class_type I-class_type O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "display all flights leaving from toronto to san diego on us air laying over in washington dc",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name O O O B-stoploc.city_name B-stoploc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "how much would car rental cost in atlanta",
        "slots": "O O O B-transport_type I-transport_type O O B-city_name",
        "intent": "ground_fare"
    },
    {
        "utterance": "can you tell me the latest evening flight from atlanta to denver on july seventh",
        "slots": "O O O O O B-flight_mod B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what ground transportation is available in denver",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "atlanta ground transportation",
        "slots": "B-city_name O O",
        "intent": "ground_service"
    },
    {
        "utterance": "show me all the flights from burbank",
        "slots": "O O O O O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flight from denver to philadelphia",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what ground transportation is there in oakland",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i need the flights that leave denver after 7 pm next monday and fly to pittsburgh",
        "slots": "O O O O O O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time B-depart_date.date_relative B-depart_date.day_name O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from la guardia to jfk",
        "slots": "O O B-fromloc.airport_name I-fromloc.airport_name O B-toloc.airport_code",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from denver to baltimore",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there between washington dc and san francisco leaving washington after 6 pm on wednesday",
        "slots": "O O O O O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name I-toloc.city_name O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "is bwi washington",
        "slots": "O B-airport_code B-city_name",
        "intent": "city"
    },
    {
        "utterance": "what are the flights from boston to san francisco leaving tomorrow",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.today_relative",
        "intent": "flight"
    },
    {
        "utterance": "in new york i 'll need to rent a car",
        "slots": "O B-city_name I-city_name O O O O O O B-transport_type",
        "intent": "ground_service"
    },
    {
        "utterance": "please list the earliest lunch flight from columbus to phoenix",
        "slots": "O O O B-flight_mod B-meal_description O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all the flights on united leaving from boston",
        "slots": "O O O O O O B-airline_name O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all the flights to baltimore after 6 o'clock pm",
        "slots": "O O O O O O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me all the delta flights leaving or arriving at pittsburgh between 12 and 4 in the afternoon",
        "slots": "O O O O B-airline_name O O O O O B-toloc.city_name O B-depart_time.start_time O B-depart_time.end_time O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what are the coach fares for flights from newark to la leaving after 3 pm",
        "slots": "O O O B-class_type O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "airfare"
    },
    {
        "utterance": "list all flights from boston to san francisco with at least 3 stops",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest round trip fare on continental 1291 round trip denver san francisco",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-airline_name B-flight_number B-round_trip I-round_trip B-fromloc.city_name B-fromloc.city_name I-fromloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "can you tell me how to get from the airport in philadelphia to downtown",
        "slots": "O O O O O O O O O O O B-fromloc.city_name O O",
        "intent": "flight"
    },
    {
        "utterance": "all flights from boston to washington",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there from indianapolis to orlando",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights depart baltimore and arrive by 8 pm friday in san francisco",
        "slots": "O O O B-fromloc.city_name O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time B-arrive_date.day_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "all round trip flights between new york and miami that are first class",
        "slots": "O B-round_trip I-round_trip O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-class_type I-class_type",
        "intent": "flight"
    },
    {
        "utterance": "list ground transportation in detroit",
        "slots": "O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "display all flights from st. petersburg and charlotte flights should leave after noon arrive after 5 pm nonstop flight",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O B-depart_time.time_relative B-depart_time.time O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time B-flight_stop O",
        "intent": "flight"
    },
    {
        "utterance": "give me the flights from salt lake city to new york city arriving before 6 pm",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what is the ap57 restriction",
        "slots": "O O O B-restriction_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "give me the flights from indianapolis to orlando on december twenty seventh and twenty eighth",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what is the least expensive one way ticket from atlanta to denver leaving on october twelfth",
        "slots": "O O O B-cost_relative I-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.month_name B-depart_date.day_number",
        "intent": "airfare"
    },
    {
        "utterance": "show me the flight that leaves philadelphia in the afternoon and arrives in the evening in denver",
        "slots": "O O O O O O B-fromloc.city_name O O B-depart_time.period_of_day O O O O B-arrive_time.period_of_day O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "where is lester pearson airport",
        "slots": "O O B-airport_name I-airport_name I-airport_name",
        "intent": "city"
    },
    {
        "utterance": "show me all the flights from montreal to detroit",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from dallas to pittsburgh on monday which leave after 8 o'clock pm",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "on november twenty third what flights are available between boston and denver on american airlines",
        "slots": "O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "ground transportation between airport and downtown in boston",
        "slots": "O O O O O O O B-toloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "please list the cost of all flights from philadelphia to denver airport next sunday",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.airport_name I-toloc.airport_name B-depart_date.date_relative B-depart_date.day_name",
        "intent": "airfare"
    },
    {
        "utterance": "what flights leave seattle on sunday on continental after 9 pm",
        "slots": "O O O B-fromloc.city_name O B-depart_date.day_name O B-airline_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i would like to know the types of ground transportation from the airport to las vegas",
        "slots": "O O O O O O O O O O O O O O B-city_name I-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show me all flights to dallas that are less than 1500 dollars round trip",
        "slots": "O O O O O B-toloc.city_name O O B-cost_relative O B-fare_amount I-fare_amount B-round_trip I-round_trip",
        "intent": "flight"
    },
    {
        "utterance": "find travel arrangements for a round trip flight from dallas to pittsburgh",
        "slots": "O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to fly united airlines from washington to denver",
        "slots": "O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what airline is dl",
        "slots": "O O O B-airline_code",
        "intent": "airline"
    },
    {
        "utterance": "what is the last flight leaving san francisco going to washington on friday",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name I-fromloc.city_name O O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to fly on twa from baltimore to san francisco",
        "slots": "O O O O O O B-airline_code O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how much does a first class ticket cost from boston to san francisco round trip",
        "slots": "O O O O B-class_type I-class_type O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-round_trip I-round_trip",
        "intent": "airfare"
    },
    {
        "utterance": "does midwest express serve nashville",
        "slots": "O B-airline_name O O B-city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from oakland to washington",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from dallas to san francisco on tuesday october first",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from denver to philadelphia",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to book a flight for august twenty seventh with us air from baltimore to oakland what flights do you have available",
        "slots": "O O O O O O O O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "flights from atlanta to dallas in the afternoon",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "display all flights from toronto to san diego on us air stopping over in denver",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights go from philadelphia to dallas via atlanta",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the next flight from pittsburgh to san francisco after delta flight 1059",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-mod B-airline_name O B-flight_number",
        "intent": "flight"
    },
    {
        "utterance": "us 3724 baltimore to philadelphia what is the round trip fare",
        "slots": "B-airline_code B-flight_number B-fromloc.city_name O B-toloc.city_name O O O B-round_trip I-round_trip O",
        "intent": "airfare"
    },
    {
        "utterance": "what time does flight aa 459 depart",
        "slots": "O B-flight_time O O B-airline_code B-flight_number O",
        "intent": "flight_time"
    },
    {
        "utterance": "list nonstop flights from san francisco to oakland that depart in the afternoon",
        "slots": "O B-flight_stop O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O O B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show ground transportation in denver",
        "slots": "O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show me the flights leaving saturday or sunday from milwaukee to phoenix",
        "slots": "O O O O O B-depart_date.day_name B-or B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the airlines with first class flights",
        "slots": "O O O O O B-class_type I-class_type O",
        "intent": "airline"
    },
    {
        "utterance": "flights between baltimore and washington dc",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from baltimore to philadelphia",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "baltimore to philadelphia",
        "slots": "B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like flight information between boston and washington september third",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights arriving at love field from other airports",
        "slots": "O O O O O O B-toloc.airport_name I-toloc.airport_name O O O",
        "intent": "flight"
    },
    {
        "utterance": "what flights leaving pittsburgh arrive in denver and leave after say 6 o'clock at night",
        "slots": "O O O B-fromloc.city_name O O B-toloc.city_name O O B-depart_time.time_relative O B-depart_time.time I-depart_time.time O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights that go from san diego to newark new jersey by way of houston",
        "slots": "O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-toloc.state_name I-toloc.state_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show flights from san francisco to denver on a thursday",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "do you have a night flight from washington to boston on august twenty seventh",
        "slots": "O O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from baltimore to oakland",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "do you have an 819 flight from denver to san francisco",
        "slots": "O O O O B-depart_time.time O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "from las vegas to montreal",
        "slots": "O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "okay all right do you have a flight on united airlines from atlanta to washington",
        "slots": "O O O O O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all the arriving flights at general mitchell international",
        "slots": "O O O B-flight_mod O O B-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "what airlines go from atlanta to baltimore",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "flights to baltimore",
        "slots": "O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from newark to los angeles",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights from memphis to seattle",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the most expensive one way flight from detroit to westchester county",
        "slots": "O O O B-cost_relative I-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "information on flights from pittsburgh to san francisco",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me the latest northwest airlines flight from milwaukee to tacoma tomorrow",
        "slots": "O O O B-flight_mod B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name B-depart_date.today_relative",
        "intent": "flight"
    },
    {
        "utterance": "what is the fare going one way on november seventh from denver to oakland",
        "slots": "O O O O O B-round_trip I-round_trip O B-depart_date.month_name B-depart_date.day_number O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show first flight from pittsburgh to atlanta on wednesday",
        "slots": "O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "flights between milwaukee and orlando one way",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip",
        "intent": "flight"
    },
    {
        "utterance": "find travel arrangements for a round trip flight from baltimore to pittsburgh",
        "slots": "O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from san francisco to pittsburgh on friday",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "find travel arrangements for a one way flight from boston to pittsburgh",
        "slots": "O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list the flight times for boston to pittsburgh",
        "slots": "O O O B-flight_time I-flight_time O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight_time"
    },
    {
        "utterance": "what is the least expensive one way fare from boston to pittsburgh",
        "slots": "O O O B-cost_relative I-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me all economy prices from dallas to baltimore",
        "slots": "O O O B-economy O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what airlines fly between san francisco and denver",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "show me flights from seattle to san francisco that leave after 5 pm",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "does eastern have an early afternoon flight from boston to san francisco",
        "slots": "O B-airline_name O O B-depart_time.period_of_day B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how many cities are served by eastern with first class flights",
        "slots": "O O O O O O B-airline_name O B-class_type I-class_type O",
        "intent": "quantity"
    },
    {
        "utterance": "okay i 'd like a flight from boston to san francisco that leaves before 8 am",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from pittsburgh to atlanta on monday morning",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there from san francisco to philadelphia daily with economy class",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-flight_days O B-economy I-economy",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from milwaukee to orlando on wednesday night or thursday morning",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day B-or B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "tell me the flights from dallas to baltimore",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "display all flights from toronto to san diego on us air with a layover in phoenix",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights leave from boston to pittsburgh in the morning",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "list the flight from philadelphia to san francisco on american airlines",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from san francisco to dallas on continental airlines",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "i want a flight from san francisco to denver leaving san francisco in the afternoon arriving denver around 5 in the afternoon",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-fromloc.city_name I-fromloc.city_name O O B-depart_time.period_of_day O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time O O B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from atlanta to baltimore nonstop arriving at 7 pm please",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-flight_stop O O B-arrive_time.time I-arrive_time.time O",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights on friday from newark to tampa",
        "slots": "O O O O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which airlines are represented in the database",
        "slots": "O O O O O O O",
        "intent": "airline"
    },
    {
        "utterance": "what flights are available from boston to atlanta on july seventh 8 am",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "all flights from montreal less than 150 dollars",
        "slots": "O O O B-fromloc.city_name B-cost_relative O B-fare_amount I-fare_amount",
        "intent": "flight"
    },
    {
        "utterance": "could i have a list of flights in first class on monday from san francisco to pittsburgh starting at noon and afterwards",
        "slots": "O O O O O O O O B-class_type I-class_type O B-depart_date.day_name O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_time.time O B-depart_time.time_relative",
        "intent": "flight"
    },
    {
        "utterance": "i want to travel from pittsburgh to oakland around midnight could you give me the flights",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.period_of_day O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "please list the flights from phoenix to san diego",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest departure time from boston to denver",
        "slots": "O O O B-flight_mod B-flight_time I-flight_time O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight_time"
    },
    {
        "utterance": "show me the flights out of love field",
        "slots": "O O O O O O B-fromloc.airport_name I-fromloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from atlanta to dallas",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "can you give me a list of the flights from atlanta to boston",
        "slots": "O O O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "find the latest flight from san francisco to atlanta that serves a meal",
        "slots": "O O B-flight_mod O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O B-meal",
        "intent": "flight"
    },
    {
        "utterance": "flights from newark to boston",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from chicago to denver on continental on saturday morning",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name O B-airline_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what ground transportation is available in newark",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "please list all flights on united airlines and northwest which go to denver",
        "slots": "O O O O O B-airline_name I-airline_name O B-airline_name O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all the flights from philadelphia to newark",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to buy a coach class ticket from denver to atlanta with a stopover in pittsburgh",
        "slots": "O O O O O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me dallas to boston flights",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available friday afternoon from pittsburgh to san francisco",
        "slots": "O O O O B-depart_date.day_name B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "can you list all the flights between phoenix and las vegas",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me one way flights from milwaukee to orlando wednesday",
        "slots": "O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "list the flights from philadelphia to dallas on american airlines",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to go between boston and washington early in the morning",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.period_mod O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from philadelphia to baltimore",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from atlanta to toronto",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need flight information on saturday for a flight from philadelphia to dallas",
        "slots": "O O O O O B-depart_date.day_name O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are all flights from boston to denver",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the most expensive fare",
        "slots": "O O O B-cost_relative I-cost_relative O",
        "intent": "airfare"
    },
    {
        "utterance": "what flights go from tampa to charlotte on sunday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight from philadelphia to dallas on american airlines",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight from denver to san francisco on the morning of august twenty seventh",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_time.period_of_day O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me flights available from atlanta to baltimore leaving on monday morning",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "list all direct flights from boston to denver",
        "slots": "O O B-connect O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flight schedule from pittsburgh to san francisco",
        "slots": "O O O B-flight_time I-flight_time O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight_time"
    },
    {
        "utterance": "show flights from new york city to las vegas",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "are there delta flights leaving atlanta",
        "slots": "O O B-airline_name O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "describe ground transportation in dallas",
        "slots": "O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what flights from los angeles to minneapolis",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the first class fares from boston to denver",
        "slots": "O O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "give me the flights with the fares from indianapolis to orlando on december twenty seventh",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "i want to fly from boston at 838 am and arrive in denver at 1110 in the morning",
        "slots": "O O O O O B-fromloc.city_name O B-depart_time.time I-depart_time.time O O O B-toloc.city_name O B-arrive_time.time O O B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "do you have any flights from boston to dallas fort worth that stop over in philadelphia",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list ground transportation in atlanta",
        "slots": "O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "atlanta to pittsburgh",
        "slots": "B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a listing of flights from st. petersburg florida to tacoma washington leaving tomorrow and i would like to have a stopover in milwaukee please",
        "slots": "O O O O O O O B-fromloc.city_name I-fromloc.city_name B-fromloc.state_name O B-toloc.city_name B-toloc.state_name O B-depart_date.today_relative O O O O O O O O O B-stoploc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "what 're the cheapest flights from new york to miami",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the cheapest one way flights from atlanta to pittsburgh",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list the flights from charlotte to long beach arriving after lunch time",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-arrive_time.time_relative B-arrive_time.period_of_day I-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "please give me evening flights leaving philadelphia to san francisco friday",
        "slots": "O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the lowest cost for a one way ticket from boston to washington",
        "slots": "O O O B-cost_relative I-cost_relative O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me the flights going from pittsburgh to san francisco on monday",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what airlines fly from burbank to denver",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "what are all flights from philadelphia to denver on wednesdays",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the afternoon flights from denver to san francisco",
        "slots": "O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like the earliest morning flight from atlanta to philadelphia on wednesday morning",
        "slots": "O O O O B-flight_mod B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what is american 's schedule of morning flights to atlanta",
        "slots": "O O B-airline_name I-airline_name B-flight_time O B-depart_time.period_of_day O O B-toloc.city_name",
        "intent": "flight_time"
    },
    {
        "utterance": "what flights from atlanta to st. louis on tuesday arriving around 230 pm",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from baltimore to philadelphia",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "while i 'm in pittsburgh what ground transportation is available",
        "slots": "O O O O B-city_name O O O O O",
        "intent": "ground_service"
    },
    {
        "utterance": "i want a one way ticket from dallas to baltimore",
        "slots": "O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i 'd like to know the latest flight from atlanta to boston",
        "slots": "O O O O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all the flights from cincinnati to toronto",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'm looking for flights from pittsburgh to philadelphia leaving before 9 am",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me the last flight from love field",
        "slots": "O O O B-flight_mod O O B-fromloc.airport_name I-fromloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "how many people fit on a 73s",
        "slots": "O O O O O O B-aircraft_code",
        "intent": "capacity"
    },
    {
        "utterance": "is there a flight on twa from baltimore to san francisco with a stop in denver",
        "slots": "O O O O O B-airline_code O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight from boston to san francisco that serves a meal",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-meal",
        "intent": "flight"
    },
    {
        "utterance": "flights from indianapolis to seattle washington",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the latest afternoon flight departing san francisco and arriving in boston on november ninth",
        "slots": "O O O B-flight_mod B-depart_time.period_of_day O O B-fromloc.city_name I-fromloc.city_name O O O B-toloc.city_name O B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights available after 6 pm between san francisco and boston",
        "slots": "O O O O O B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "from seattle to salt lake city",
        "slots": "O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to fly to san francisco from washington dc",
        "slots": "O O O O O O B-toloc.city_name I-toloc.city_name O B-fromloc.city_name B-fromloc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "yes i 'd like a flight from long beach to st. louis by way of dallas",
        "slots": "O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the round trip tickets from baltimore to atlanta",
        "slots": "O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "sure i want to go from philadelphia to dallas",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the type of aircraft that cp uses",
        "slots": "O O O O O O O B-airline_code O",
        "intent": "aircraft"
    },
    {
        "utterance": "what is the latest flight i can take from washington to san francisco",
        "slots": "O O O B-flight_mod O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is ewr",
        "slots": "O O B-airport_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "show me flights from philadelphia to oakland on friday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me any show me what the first class fares are of the flights from pittsburgh to san francisco on monday",
        "slots": "O O O O O O O B-class_type I-class_type O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "airfare"
    },
    {
        "utterance": "i would like information on flights leaving atlanta in the afternoon arriving in dallas",
        "slots": "O O O O O O O B-fromloc.city_name O O B-depart_time.period_of_day O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how many first class flights does united airlines have departing from boston today",
        "slots": "O O B-class_type I-class_type O O B-airline_name I-airline_name O O O B-fromloc.city_name B-depart_date.today_relative",
        "intent": "quantity"
    },
    {
        "utterance": "i 'd like to fly from philadelphia to dallas through atlanta",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from houston to milwaukee on friday on american airlines",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'm planning a trip to pittsburgh and i live in denver can you help me",
        "slots": "O O O O O O B-toloc.city_name O O O O B-fromloc.city_name O O O O",
        "intent": "flight"
    },
    {
        "utterance": "from sfo to denver",
        "slots": "O B-fromloc.airport_code O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights leave from phoenix to anywhere",
        "slots": "O O O O B-fromloc.city_name O O",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from denver to san francisco on tuesday october fifteenth",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what is the fare going from boston to dallas fort worth one way on november seventh",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name B-round_trip I-round_trip O B-depart_date.month_name B-depart_date.day_number",
        "intent": "airfare"
    },
    {
        "utterance": "show me the flights from san francisco to pittsburgh on tuesday",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights go from pittsburgh to newark after 305 in the afternoon",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what does s designate as a meal",
        "slots": "O O B-meal_code O O O B-meal",
        "intent": "abbreviation"
    },
    {
        "utterance": "give me the continental flights from chicago to seattle on friday",
        "slots": "O O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what airline is hp",
        "slots": "O O O B-airline_code",
        "intent": "airline"
    },
    {
        "utterance": "give me all the flights from new york to miami round trip",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip",
        "intent": "flight"
    },
    {
        "utterance": "show me all the flights between oakland and denver",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which flights go from philadelphia to san francisco",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights that go from oakland to philadelphia on friday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "does any airline have a jet flight between pittsburgh and baltimore",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "give me flights from atlanta to baltimore",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the earliest flight from dallas to houston",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is there a 4 o'clock flight from washington dc to denver",
        "slots": "O O O B-depart_time.time I-depart_time.time O O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how many united flights are there to san francisco",
        "slots": "O O B-airline_name O O O O B-toloc.city_name I-toloc.city_name",
        "intent": "quantity"
    },
    {
        "utterance": "show me the cheapest flights from atlanta to denver",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights go from boston to denver before 10 am",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what ground transportation is there in atlanta",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "how much is a flight from washington to boston",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "list the flights on friday afternoon from philadelphia to oakland",
        "slots": "O O O O B-depart_date.day_name B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight from pittsburgh to san francisco on august twentieth",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "no i want to go from denver to oakland",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list all of the flights leaving atlanta heading to baltimore after 8 pm wednesday and before 9 am thursday",
        "slots": "O O O O O O O B-fromloc.city_name O O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time B-depart_date.day_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the cheapest flights from denver to pittsburgh that stop in atlanta",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what type of airplane is an m80",
        "slots": "O O O O O O B-aircraft_code",
        "intent": "aircraft"
    },
    {
        "utterance": "lowest fare from san francisco to orlando",
        "slots": "B-cost_relative O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "list all flights from burbank to denver",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the lowest round trip fare from denver to atlanta",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what are the round trip flights from philadelphia to san francisco",
        "slots": "O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight on continental airlines on august twentieth from washington to pittsburgh",
        "slots": "O O O O O O B-airline_name I-airline_name O B-depart_date.month_name B-depart_date.day_number O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights on continental from indianapolis to san diego in the afternoon tomorrow",
        "slots": "O O O O O B-airline_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_time.period_of_day B-depart_date.today_relative",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from denver to pittsburgh on july seventh that leaves in the afternoon",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number O O O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "give me a flight between boston and denver",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to book an early morning flight from tampa to charlotte on april sixth",
        "slots": "O O O O O O B-depart_time.period_of_day B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what is the latest flight on wednesday going from atlanta to washington dc",
        "slots": "O O O B-flight_mod O O B-depart_date.day_name O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "please list flights between san francisco and denver",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "nonstop flights seattle to boston",
        "slots": "B-flight_stop O B-toloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "all united airlines flights with stopovers in denver",
        "slots": "O B-airline_name I-airline_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me the flights and fares on december twenty seventh from indianapolis to orlando",
        "slots": "O O O O O O O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight+airfare"
    },
    {
        "utterance": "how many booking classes are there",
        "slots": "O O O O O O",
        "intent": "quantity"
    },
    {
        "utterance": "when are the american flights from phoenix to milwaukee",
        "slots": "O O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from boston to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list the flights from dallas fort worth to boston on july twenty third",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what evening flights do you have available from baltimore to philadelphia",
        "slots": "O B-depart_time.period_of_day O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list daily flights from denver to baltimore with first class service",
        "slots": "O B-flight_days O O B-fromloc.city_name O B-toloc.city_name O B-class_type I-class_type O",
        "intent": "flight"
    },
    {
        "utterance": "what are the two american airlines flights that leave from dallas to san francisco in the evening",
        "slots": "O O O B-mod B-airline_name I-airline_name O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i want a flight from cincinnati to burbank on american airlines and leave in the afternoon",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name O O O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what are the air restrictions on flights from pittsburgh to atlanta for the airfare of 416 dollars",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-fare_amount I-fare_amount",
        "intent": "restriction"
    },
    {
        "utterance": "i want wednesday flights from atlanta to washington dc",
        "slots": "O O B-depart_date.day_name O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to book the cheapest flight from atlanta to denver on august first",
        "slots": "O O O O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what flight do you have from atlanta to dallas on august twenty seventh in the morning",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i want to fly from boston to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i actually want to go from ontario to westchester via chicago",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest coach fare from dallas to denver round trip",
        "slots": "O O O B-cost_relative B-class_type O O B-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip",
        "intent": "airfare"
    },
    {
        "utterance": "show me the flights that go from san diego to newark new jersey",
        "slots": "O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-toloc.state_name I-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "from phoenix to denver on a monday",
        "slots": "O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "do you have any flights from chicago to indianapolis",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest fare i can get from dallas to denver",
        "slots": "O O O B-cost_relative O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "please show me all airports in denver",
        "slots": "O O O O O O B-city_name",
        "intent": "airport"
    },
    {
        "utterance": "find travel arrangements for a round trip flight from dallas to pittsburgh after 8 pm",
        "slots": "O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "how do you travel from san francisco airport to downtown san francisco",
        "slots": "O O O O O B-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name O O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please show me the cost of flight ua 201 from boston to denver and flight ua 343 from boston to denver",
        "slots": "O O O O O O O B-airline_code B-flight_number O B-fromloc.city_name O B-toloc.city_name O O B-airline_code B-flight_number O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "find travel arrangements for a round trip flight from boston to pittsburgh",
        "slots": "O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like the time of your earliest flight in the morning from philadelphia to washington on american airlines",
        "slots": "O O O O B-flight_time O O B-flight_mod O O O B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight_time"
    },
    {
        "utterance": "what are the most expensive first class tickets between boston and san francisco",
        "slots": "O O O B-cost_relative I-cost_relative B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "are there any 4 o'clock flights from washington to denver",
        "slots": "O O O B-depart_time.time I-depart_time.time O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what kind of ground transportation is there once i get to dallas",
        "slots": "O O O O O O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show me first class flights from new york to miami leaving on a tuesday",
        "slots": "O O B-class_type I-class_type O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what airplane types fly from pittsburgh to baltimore",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "aircraft"
    },
    {
        "utterance": "show me the flights that go from san diego to newark with one stop in houston",
        "slots": "O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-flight_stop I-flight_stop O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "on united airlines flying from denver to san francisco before 10 am what type of aircraft is used",
        "slots": "O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from pittsburgh to philadelphia",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight from boston to bwi that serves a snack",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.airport_code O O O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "i wish to fly from boston to washington please find an airline for me",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "i would like to know the flights that are available leaving out of pittsburgh to san francisco on thursday night after 9 pm",
        "slots": "O O O O O O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i would like a coach class seat on a flight leaving denver arriving atlanta",
        "slots": "O O O O B-class_type I-class_type O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights on january first 1992 from boston to san francisco",
        "slots": "O O O O O B-depart_date.month_name B-depart_date.day_number B-depart_date.year O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "nonstop or connecting flights from seattle to boston",
        "slots": "B-flight_stop B-or B-connect O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the nonstop flights from dallas to houston",
        "slots": "O O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the aircraft that canadian airlines uses",
        "slots": "O O O O O B-airline_name I-airline_name O",
        "intent": "aircraft"
    },
    {
        "utterance": "what are all flights from denver to philadelphia on saturday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "all flights from boston to washington dc on november eleventh",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from baltimore to philadelphia",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flight from milwaukee to chicago",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the flight number of the earliest flight between boston and washington dc",
        "slots": "O O O O O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code",
        "intent": "flight_no"
    },
    {
        "utterance": "list all flights from chicago to seattle on continental airlines which depart on saturday before noon and include a meal",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name O O O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time O O O B-meal",
        "intent": "flight"
    },
    {
        "utterance": "flights from newark to cleveland daily 5 o'clock pm",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name B-flight_days B-depart_time.time I-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "do you have a flight from atlanta to charlotte north carolina next monday",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_name I-toloc.state_name B-depart_date.date_relative B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the cheapest flights from dallas to baltimore",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what afternoon flights are available between denver and dallas fort worth",
        "slots": "O B-depart_time.period_of_day O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from boston to orlando",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "can you list flights from washington to toronto with the lowest one way fares",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-cost_relative B-round_trip I-round_trip O",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from boston to denver on tuesday october fifteenth",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "my question is i want to go to san francisco and i live in denver and i would like to fly on united airlines do you have an early flight",
        "slots": "O O O O O O O O B-toloc.city_name I-toloc.city_name O O O O B-fromloc.city_name O O O O O O O B-airline_name I-airline_name O O O O B-flight_mod O",
        "intent": "flight"
    },
    {
        "utterance": "what are the fares for flights between atlanta and dfw",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.airport_code",
        "intent": "airfare"
    },
    {
        "utterance": "i would like to find a flight that goes from tampa to montreal making a stop in new york and a flight that serves lunch",
        "slots": "O O O O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name I-stoploc.city_name O O O O O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "please explain fare code f",
        "slots": "O O O O B-fare_basis_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "what are the flights between dallas and pittsburgh on july eight",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what ground transport is available in minneapolis",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "okay i would like to fly from atlanta to philadelphia",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is fare code h",
        "slots": "O O O O B-fare_basis_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "flights from baltimore to philadelphia please",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "please list united flights between boston and denver departing at 9 am",
        "slots": "O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i would like a list of round trip flights between indianapolis and orlando florida for the twenty seventh and the twenty eighth of december",
        "slots": "O O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_name O O B-depart_date.day_number I-depart_date.day_number O O B-depart_date.day_number I-depart_date.day_number O B-depart_date.month_name",
        "intent": "flight"
    },
    {
        "utterance": "please list the flights from washington dc to atlanta",
        "slots": "O O O O O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "all flights and fares from pittsburgh to dallas round trip after 12 pm less than 1100 dollars",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip B-depart_time.time_relative B-depart_time.time I-depart_time.time B-cost_relative O B-fare_amount I-fare_amount",
        "intent": "flight+airfare"
    },
    {
        "utterance": "i would like to fly from atlanta to philadelphia",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "round trip fares from baltimore to philadelphia less than 1000 dollars or round trip fares from denver to philadelphia less than 1000 dollars or round trip fares from pittsburgh to philadelphia less than 1000 dollars",
        "slots": "B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name B-cost_relative O B-fare_amount I-fare_amount B-or B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name B-cost_relative O B-fare_amount I-fare_amount B-or B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name B-cost_relative O B-fare_amount I-fare_amount",
        "intent": "airfare"
    },
    {
        "utterance": "morning flight from oakland to dallas",
        "slots": "B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show flights leaving boston on wednesday morning and arriving in denver",
        "slots": "O O O B-fromloc.city_name O B-depart_date.day_name B-depart_time.period_of_day O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me the earliest flight on american airlines tomorrow from st. petersburg to milwaukee",
        "slots": "O O O B-flight_mod O O B-airline_name I-airline_name B-depart_date.today_relative O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what airlines fly into salt lake city",
        "slots": "O O O O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "i want to fly from denver to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from baltimore to dallas tomorrow morning",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.today_relative B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i 'm looking for flights from oakland to atlanta leaving before 1045 am",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest flight from boston to bwi",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.airport_code",
        "intent": "flight"
    },
    {
        "utterance": "what northwest airline flights leave denver before noon",
        "slots": "O B-airline_name I-airline_name O O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what is delta 's schedule of morning flights to atlanta",
        "slots": "O O B-airline_name I-airline_name B-flight_time O B-depart_time.period_of_day O O B-toloc.city_name",
        "intent": "flight_time"
    },
    {
        "utterance": "list lowest cost flight from dallas to baltimore",
        "slots": "O B-cost_relative I-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me first class airlines from san francisco to pittsburgh on next tuesday first class only",
        "slots": "O O B-class_type I-class_type O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.date_relative B-depart_date.day_name B-class_type I-class_type O",
        "intent": "airline"
    },
    {
        "utterance": "first class fares from dallas to baltimore please",
        "slots": "B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name O",
        "intent": "airfare"
    },
    {
        "utterance": "what airline is the flight originating in atlanta on november seventh at noon and arriving in san francisco at 210 pm",
        "slots": "O O O O O O O B-fromloc.city_name O B-depart_date.month_name B-depart_date.day_number O B-depart_time.time O O O B-toloc.city_name I-toloc.city_name O B-arrive_time.time I-arrive_time.time",
        "intent": "airline"
    },
    {
        "utterance": "i 'll need a rental car at the atlanta airport can you show me what 's available",
        "slots": "O O O O B-transport_type I-transport_type O O B-airport_name I-airport_name O O O O O O O",
        "intent": "ground_service"
    },
    {
        "utterance": "what flights are there from pittsburgh to dallas on wednesday morning",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "are there any flights from chicago to minneapolis on saturday on continental",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the nonstop flights from houston to dallas",
        "slots": "O O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to go to boston from denver and i 'd like to get there",
        "slots": "O O O O O O B-toloc.city_name O B-fromloc.city_name O O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "list the flights arriving in baltimore from denver on august third",
        "slots": "O O O O O B-toloc.city_name O B-fromloc.city_name O B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "tell me about ground transportation at toronto",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show me the southwest airlines flights from san diego to san francisco",
        "slots": "O O O B-airline_name I-airline_name O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights available in the morning between denver and san francisco",
        "slots": "O O O O O O O B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "on tuesday what flights leave phoenix to st. paul minnesota and leave after noon",
        "slots": "O B-depart_date.day_name O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-toloc.state_name O O B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me the earliest flight on august second from boston to denver that serves a meal",
        "slots": "O O O B-flight_mod O O B-depart_date.month_name B-depart_date.day_number O B-fromloc.city_name O B-toloc.city_name O O O B-meal",
        "intent": "flight"
    },
    {
        "utterance": "i need a list of late afternoon flights from st. louis to chicago",
        "slots": "O O O O O B-depart_time.period_of_day I-depart_time.period_of_day O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me morning flights from charlotte to baltimore",
        "slots": "O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from denver to san francisco next wednesday which leave after noon",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_date.date_relative B-depart_date.day_name O O B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show flights from denver to oakland",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "are there any flights from denver to pittsburgh with a stopover in atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is there any ground transportation to the city in dallas",
        "slots": "O O O O O O O B-city_name I-city_name I-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show me the names of airlines in atlanta",
        "slots": "O O O O O O O B-city_name",
        "intent": "airline"
    },
    {
        "utterance": "show me flights from pittsburgh to los angeles thursday evening",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what flights from st. paul to kansas city on friday with breakfast served",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name O B-meal_description O",
        "intent": "flight"
    },
    {
        "utterance": "i would like to book a flight from chicago to seattle on june first",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show flights from boston to denver on wednesday morning",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from denver to philadelphia",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the latest flight leaving newark for los angeles wednesday",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights go from denver to atlanta",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is ua",
        "slots": "O O B-airline_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "when is the first flight in the morning from boston to denver",
        "slots": "O O O B-flight_mod O O O B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "does american airline fly from denver to pittsburgh",
        "slots": "O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the flights from denver to san francisco after 2 pm on a monday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from philadelphia to baltimore",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "bring up flights from milwaukee to orlando on wednesday night or thursday morning",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day B-or B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from pittsburgh to baltimore",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show business class fares on us air from boston to toronto",
        "slots": "O B-class_type I-class_type O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i would like to book a flight on continental airlines from chicago to seattle on june first",
        "slots": "O O O O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "all flights and fares from denver to pittsburgh on us air number 1039 on a thursday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name O B-flight_number O O B-depart_date.day_name",
        "intent": "flight+airfare"
    },
    {
        "utterance": "i want to see the cheapest flights from denver to atlanta",
        "slots": "O O O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available from atlanta to oakland with one way economy fares",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-round_trip I-round_trip B-economy O",
        "intent": "flight"
    },
    {
        "utterance": "list daily flights from oakland to boston using continental airlines",
        "slots": "O B-flight_days O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "cheapest flight from memphis to miami",
        "slots": "B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the price of all flights from atlanta to washington dc",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code",
        "intent": "airfare"
    },
    {
        "utterance": "list all flights that leave from baltimore or denver or pittsburgh and arrive in philadelphia",
        "slots": "O O O O O O B-fromloc.city_name B-or B-fromloc.city_name B-or B-fromloc.city_name O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "pittsburgh to denver",
        "slots": "B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from pittsburgh to newark",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is hp",
        "slots": "O O B-airline_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "list all day time flights from pittsburgh to boston",
        "slots": "O O B-flight_mod I-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to get a flight from washington to oakland with a stopover in dallas fort worth for september fifteenth",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name I-stoploc.city_name I-stoploc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "is there a flight on american airlines going from boston to san francisco on june twenty eighth",
        "slots": "O O O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what is the latest flight leaving boston to denver",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "all northwest flights with stopovers in denver",
        "slots": "O B-airline_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a connecting flight on continental on june fifth from chicago to seattle",
        "slots": "O O O B-connect O O B-airline_name O B-depart_date.month_name B-depart_date.day_number O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want a flight departing from newark to los angeles that leaves in the morning",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight tonight from charlotte to las vegas with a stop in st. louis and i want dinner",
        "slots": "O O O O B-depart_date.today_relative O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name I-stoploc.city_name O O O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from pittsburgh to oakland",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "philadelphia to san francisco",
        "slots": "B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how many first class flights does united have today",
        "slots": "O O B-class_type I-class_type O O B-airline_name O B-depart_date.today_relative",
        "intent": "quantity"
    },
    {
        "utterance": "which united airlines flight flies from boston to san francisco and makes a stopover in philadelphia",
        "slots": "O B-airline_name I-airline_name O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the first flight after 1 pm leaving washington to denver",
        "slots": "O O O B-flight_mod O B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like the cheapest one way fare from boston to atlanta please",
        "slots": "O O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name O",
        "intent": "airfare"
    },
    {
        "utterance": "what american airlines flights from phoenix to milwaukee depart phoenix after 6 pm on wednesday",
        "slots": "O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights from atlanta to baltimore thursday morning",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what kind of ground transportation is there in washington dc",
        "slots": "O O O O O O O O B-city_name B-state_code",
        "intent": "ground_service"
    },
    {
        "utterance": "how expensive is the san francisco limousine service",
        "slots": "O O O O B-city_name I-city_name B-transport_type O",
        "intent": "ground_fare"
    },
    {
        "utterance": "show me all flights from dallas to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how much does a first class round trip ticket from cleveland to miami on us air cost",
        "slots": "O O O O B-class_type I-class_type B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name O",
        "intent": "airfare"
    },
    {
        "utterance": "does any airline have an afternoon flight from atlanta to boston",
        "slots": "O O O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "please list the flights from chicago to kansas city",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are between dfw and oakland",
        "slots": "O O O O B-fromloc.airport_code O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me ground transportation in denver",
        "slots": "O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "could you give me a flight between pittsburgh and philadelphia",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the lowest round trip fare from denver to pittsburgh",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "please list the american airlines flights from philadelphia to dallas on tuesday october first",
        "slots": "O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "flight from denver to boston",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight as early as possible in the day leaving from boston and to denver",
        "slots": "O O O O O O B-flight_mod O O O O O O O B-fromloc.city_name O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights between memphis and las vegas on sunday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "how do i get from pittsburgh airport to downtown pittsburgh",
        "slots": "O O O O O B-fromloc.airport_name I-fromloc.airport_name O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the earliest flight from san jose to pittsburgh that serves a snack",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "continental airlines on saturday from chicago to seattle",
        "slots": "B-airline_name I-airline_name O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "could you show me all the flights from oakland to salt lake city",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i am interested in booking an early morning flight from dallas into houston and returning in the late evening",
        "slots": "O B-depart_time.period_of_day O O O O B-depart_time.period_of_day B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name O O O O B-return_time.period_mod B-return_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "list all tuesday night flights from boston to denver",
        "slots": "O O B-depart_date.day_name B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to find the cheapest flight from washington dc to atlanta",
        "slots": "O O O O O O B-cost_relative O O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from miami to new york leaving on a sunday first class",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-depart_date.day_name B-class_type I-class_type",
        "intent": "flight"
    },
    {
        "utterance": "list flights from philadelphia to san francisco thursday",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i need information on ground transportation between airport and downtown in the city of boston",
        "slots": "O O O O O O O O O O O O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "all flights from baltimore to atlanta between 1 o'clock and 3 o'clock in the afternoon",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.start_time I-depart_time.start_time O B-depart_time.end_time I-depart_time.end_time O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i want to fly nonstop from denver to dallas",
        "slots": "O O O O B-flight_stop O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "can you find out about the ground transportation available in atlanta",
        "slots": "O O O O O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show me flights from anywhere to philadelphia arriving after 2100",
        "slots": "O O O O O O B-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest one way fare from san francisco to boston on wednesday august twenty first",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "airfare"
    },
    {
        "utterance": "i 'd like a list of the flights from oakland to dallas fort worth on sunday",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from minneapolis to pittsburgh",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is there a delta flight from boston to san francisco that stops in denver",
        "slots": "O O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "again i will repeat i want to make a one way flight from boston to atlanta will you tell me how much the fares are i would like the cheapest fare",
        "slots": "O O O O O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name O O O O O O O O O O O O O B-cost_relative O",
        "intent": "flight+airfare"
    },
    {
        "utterance": "i would like to book a flight for august twenty seventh from baltimore to san francisco on us air",
        "slots": "O O O O O O O O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "list the flights from salt lake city to st. petersburg",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from san diego to newark by way of houston",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flight from long beach to columbus on twenty seventh",
        "slots": "O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what flights does us air have from san francisco to pittsburgh on tuesday",
        "slots": "O O O B-airline_name I-airline_name O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the coach flights between dallas and baltimore leaving august tenth and returning august twelve",
        "slots": "O O O B-class_type O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number O O B-return_date.month_name B-return_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what are the fares from dallas to san francisco on flight dl 217",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-airline_code B-flight_number",
        "intent": "airfare"
    },
    {
        "utterance": "show me the earliest flight from boston to denver",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights from baltimore to san francisco on friday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the rental car rates in dallas",
        "slots": "O O O B-transport_type I-transport_type O O B-city_name",
        "intent": "ground_fare"
    },
    {
        "utterance": "show me flights from dallas to san francisco on wednesdays",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there from new york city to las vegas",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like flights going from boston to atlanta leaving on august sixth in the afternoon",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.month_name B-depart_date.day_number O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show flights from pittsburgh to oakland",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "friday 's flights between newark and tampa",
        "slots": "B-depart_date.day_name I-depart_date.day_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight from tampa to milwaukee tomorrow",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name B-depart_date.today_relative",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from san francisco to boston philadelphia or baltimore",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-toloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what does fare code qx mean",
        "slots": "O O O O B-fare_basis_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "how many fare codes belong to economy class",
        "slots": "O O O O O O B-economy I-economy",
        "intent": "quantity"
    },
    {
        "utterance": "show me the last flight available in the evening from boston to dc on july twenty first",
        "slots": "O O O B-flight_mod O O O O B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.state_code O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from san francisco to new york nonstop",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest way to fly from denver to oakland",
        "slots": "O O O B-cost_relative O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from new york to miami",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to see the flights from baltimore to philadelphia again",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "what do you have going from atlanta to philadelphia serving breakfast",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights for tomorrow from san francisco to pittsburgh",
        "slots": "O O O O O B-depart_date.today_relative O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list am flights leaving san francisco boston",
        "slots": "O O B-depart_time.period_of_day O O B-fromloc.city_name I-fromloc.city_name B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from dallas to atlanta on tuesday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "american flights to houston from cincinnati",
        "slots": "B-airline_name O O B-toloc.city_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "am flights from atlanta to philadelphia",
        "slots": "B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from atlanta to st. louis on tuesday arriving around 230 pm",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what are the different classes that an airline offers",
        "slots": "O O O O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from denver to baltimore on august tenth",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what kind of airplanes are used by delta airlines flying between washington and denver",
        "slots": "O O O O O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "aircraft"
    },
    {
        "utterance": "please list all the takeoffs and landings for general mitchell international",
        "slots": "O O O O O O O O B-airport_name I-airport_name I-airport_name",
        "intent": "flight"
    },
    {
        "utterance": "please give me information on a flight on april seventeen from philadelphia to boston as early as possible",
        "slots": "O O O O O O O O B-depart_date.month_name B-depart_date.day_number O B-fromloc.city_name O B-toloc.city_name O B-flight_mod O O",
        "intent": "flight"
    },
    {
        "utterance": "what is the lowest fare from denver to atlanta",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i 'd like to go from detroit to san diego on wednesday evening june second",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "could you tell me about flights from philadelphia to dallas that arrives in the early afternoon",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-depart_time.period_of_day B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what are the ground transportation services in philadelphia",
        "slots": "O O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what flights leave from nashville to milwaukee",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flight from salt lake city to oakland california",
        "slots": "O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from baltimore to boston",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "are there any flights available from baltimore to dallas monday afternoon",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "find me the cheapest flight from boston to washington",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "information on ground transportation from airport to downtown boston",
        "slots": "O O O O O O O O B-toloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i would like direct coach flights from pittsburgh to atlanta",
        "slots": "O O O B-connect B-class_type O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight that goes from atlanta to washington on thursday",
        "slots": "O O O B-flight_mod O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights go from dallas to denver leaving after 3 pm",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from new york city to montreal thursday may six",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "may i have a listing of flights from long beach california to columbus ohio on wednesday",
        "slots": "O O O O O O O O B-fromloc.city_name I-fromloc.city_name B-fromloc.state_name O B-toloc.city_name B-toloc.state_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'm interested in a flight from pittsburgh to atlanta",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me the flights on tuesday from los angeles to pittsburgh",
        "slots": "O O O O O B-depart_date.day_name O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list the flight times from newark to boston",
        "slots": "O O O B-flight_time I-flight_time O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight_time"
    },
    {
        "utterance": "show me all flights from pittsburgh to boston both direct and connecting that depart pittsburgh after 7 pm",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O O O O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "round trip air fares from baltimore to philadelphia less than 1000 dollars",
        "slots": "B-round_trip I-round_trip O O O B-fromloc.city_name O B-toloc.city_name B-cost_relative O B-fare_amount I-fare_amount",
        "intent": "airfare"
    },
    {
        "utterance": "what is the earliest flight from washington to san francisco on friday that serves breakfast",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name O O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "how about flights from dallas to atlanta on wednesday morning",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what is the least expensive flight from pittsburgh to atlanta leaving on october fifth",
        "slots": "O O O B-cost_relative I-cost_relative O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "i would like to find the least expensive flight from boston to denver",
        "slots": "O O O O O O B-cost_relative I-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which flights depart los angeles destination charlotte that leave on a monday morning",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "please list the tuesday flights from atlanta to st. louis",
        "slots": "O O O B-depart_date.day_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight from washington to boston on august twentieth at 324 pm",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number O B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "very well i 'm working on scenario three i 'm interested in a flight on a 727 from washington dc to atlanta georgia",
        "slots": "O O O O O O O O O O O O O O O O B-aircraft_code O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name B-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "flight information from oakland to denver",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights from tampa florida to miami that are the cheapest one way",
        "slots": "O O O O B-fromloc.city_name B-fromloc.state_name O B-toloc.city_name O O O B-cost_relative B-round_trip I-round_trip",
        "intent": "flight"
    },
    {
        "utterance": "how much does flight ua 297 from denver to san francisco cost",
        "slots": "O O O O B-airline_code B-flight_number O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O",
        "intent": "airfare"
    },
    {
        "utterance": "do you have the fare for traveling from oakland airport to oakland downtown",
        "slots": "O O O O O O O O B-fromloc.airport_name I-fromloc.airport_name O B-toloc.city_name O",
        "intent": "airfare"
    },
    {
        "utterance": "which airlines fly from boston to washington dc but stopover in some other city",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O O O O O O",
        "intent": "airline"
    },
    {
        "utterance": "i would like to fly the cheapest rate available from pittsburgh to atlanta on wednesday morning",
        "slots": "O O O O O O B-cost_relative O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "how can i go from the san francisco airport to downtown san francisco",
        "slots": "O O O O O O B-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name O O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list types of aircraft that connect boston and san francisco",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "aircraft"
    },
    {
        "utterance": "cheapest fare from nashville to seattle",
        "slots": "B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what time are flights from denver to san francisco on continental airlines",
        "slots": "O B-flight_time O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight_time"
    },
    {
        "utterance": "show me the flights from all airports to love field",
        "slots": "O O O O O O O O B-toloc.airport_name I-toloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to fly from boston to baltimore",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there from memphis to las vegas",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what airlines fly from boston to pittsburgh",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "please give me flights available from denver to philadelphia",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "are there any nonstop flights from san francisco to boston on thursdays",
        "slots": "O O O B-flight_stop O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what does the fare code f mean",
        "slots": "O O O O O B-fare_basis_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "flights from newark to boston",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is fare code c",
        "slots": "O O O O B-fare_basis_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "is there a flight from charlotte to newark on tuesday evening",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "when is the first flight leaving from oakland to boston",
        "slots": "O O O B-flight_mod O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "are there any flights from boston to san francisco which stop in washington dc",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-stoploc.city_name B-stoploc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "i want to go from denver to atlanta round trip and make a stop at pittsburgh may i have the cheapest fare",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip O O O O O B-stoploc.city_name O O O O B-cost_relative O",
        "intent": "flight"
    },
    {
        "utterance": "please give me a flight leaving boston going to washington arriving in washington at 5 o'clock in the afternoon",
        "slots": "O O O O O O B-fromloc.city_name O O B-toloc.city_name O O B-toloc.city_name O B-arrive_time.time I-arrive_time.time O O B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "list all daily flights between boston and oakland using delta airlines",
        "slots": "O O B-flight_days O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights on twa from atlanta in the morning",
        "slots": "O O O O O B-airline_code O B-fromloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights leaving from atlanta for washington dc on thursday morning",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "boston to denver monday",
        "slots": "B-fromloc.city_name O B-toloc.city_name B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "does midwest express serve indianapolis",
        "slots": "O B-airline_name O O B-city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights leaving san francisco monday afternoon arriving in pittsburgh",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name B-depart_date.day_name B-depart_time.period_of_day O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "tell me about flights from indianapolis to houston",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights that depart from san francisco and go to either boston philadelphia or baltimore",
        "slots": "O O O O O O O B-fromloc.city_name I-fromloc.city_name O O O O B-toloc.city_name B-toloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "let 's look at baltimore to philadelphia again",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "do any of the continental flights from boston to san francisco stop in denver",
        "slots": "O O O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what times does continental depart from boston to san francisco",
        "slots": "O B-flight_time O B-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight_time"
    },
    {
        "utterance": "looking for a flight from dc to minnesota",
        "slots": "O O O O O B-fromloc.state_code O B-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the fare from atlanta to boston on coach one way",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-class_type B-round_trip I-round_trip",
        "intent": "airfare"
    },
    {
        "utterance": "what 're the lowest one way fares from denver to atlanta",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "find me the earliest flight from boston to atlanta and the latest return from atlanta to boston within the same day",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.date_relative O",
        "intent": "flight"
    },
    {
        "utterance": "okay i would like to know the type of aircraft used on a flight from cleveland to dallas please",
        "slots": "O O O O O O O O O O O O O O O B-fromloc.city_name O B-toloc.city_name O",
        "intent": "aircraft"
    },
    {
        "utterance": "how many flights does american airlines have with a class of service code f",
        "slots": "O O O O B-airline_name I-airline_name O O O O O O O B-fare_basis_code",
        "intent": "quantity"
    },
    {
        "utterance": "show me the flights from cincinnati to denver",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from love field",
        "slots": "O O O O O B-fromloc.airport_name I-fromloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from charlotte",
        "slots": "O O O O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to know the flights from denver to pittsburgh leaving on monday",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "san francisco to denver tuesday",
        "slots": "B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights from boston to san francisco with more than 3 stops",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from westchester county to cincinnati",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight in the morning to arrive in baltimore from boston",
        "slots": "O O O B-flight_mod O O O B-depart_time.period_of_day O O O B-toloc.city_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from milwaukee to orlando on a thursday before noon",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "which northwest and united flights go through denver before noon",
        "slots": "O B-airline_name O B-airline_name O O O B-stoploc.city_name B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me dallas ground transport",
        "slots": "O O B-city_name O O",
        "intent": "ground_service"
    },
    {
        "utterance": "show me flights from milwaukee to orlando on wednesday evening or thursday mornings",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day B-or B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "how much is the 718 am flight from las vegas to new york twa",
        "slots": "O O O O B-depart_time.time I-depart_time.time O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-airline_code",
        "intent": "airfare"
    },
    {
        "utterance": "ground transportation denver",
        "slots": "O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i need information on flights for tuesday leaving baltimore for dallas dallas to boston and boston to baltimore",
        "slots": "O O O O O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name B-fromloc.city_name O B-toloc.city_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to make a trip from washington to san francisco",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which united flights from boston to san francisco make connections",
        "slots": "O B-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-connect",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight from boston to atlanta",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show flights from denver to oakland that arrive after 12 o'clock",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me ground transportation for dallas",
        "slots": "O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what is restriction ap57",
        "slots": "O O O B-restriction_code",
        "intent": "restriction"
    },
    {
        "utterance": "what are the flights from las vegas to burbank also on saturday may twenty two",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from love field",
        "slots": "O O O O O B-fromloc.airport_name I-fromloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from pittsburgh to baltimore arriving in baltimore on june fourteenth",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-toloc.city_name O B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what flights stop in atlanta before noon",
        "slots": "O O O O B-stoploc.city_name B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from orlando to kansas city",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "boston to pittsburgh",
        "slots": "B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from pittsburgh to denver and back",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O",
        "intent": "flight"
    },
    {
        "utterance": "what flights from philadelphia to atlanta",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show flights first class on american from philadelphia to dallas fort worth",
        "slots": "O O B-class_type I-class_type O B-airline_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need to fly from dallas to san francisco and be in san francisco by 4 pm",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-toloc.city_name I-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what is the fare on november seventh going one way from dallas to san francisco",
        "slots": "O O O O O B-depart_date.month_name B-depart_date.day_number O B-round_trip I-round_trip O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what kind of airplane goes from boston to san francisco before noon",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_time.time_relative B-depart_time.time",
        "intent": "aircraft"
    },
    {
        "utterance": "is there a round trip flight from atlanta to dallas via denver",
        "slots": "O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to fly from denver to pittsburgh on united airlines",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the distance from los angeles international airport to los angeles",
        "slots": "O O O O O B-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name O B-toloc.city_name I-toloc.city_name",
        "intent": "distance"
    },
    {
        "utterance": "is there ground transportation from the boston airport to downtown boston",
        "slots": "O O O O O O B-fromloc.airport_name I-fromloc.airport_name O O B-toloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i would like a flight that leaves on friday from philadelphia to dallas that makes a stop in atlanta",
        "slots": "O O O O O O O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name O O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want a flight from boston to atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight from boston to san francisco on august seventeenth",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what flights leave phoenix on american airlines",
        "slots": "O O O B-fromloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the latest flight from san jose to houston",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from san francisco to atlanta",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "now i need flights leaving denver in the afternoon on wednesday and arriving in san francisco",
        "slots": "O O O O O B-fromloc.city_name O O B-depart_time.period_of_day O B-depart_date.day_name O O O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the most expensive first class tickets between atlanta and dallas",
        "slots": "O O O B-cost_relative I-cost_relative B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me the flights from san francisco to boston",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "earliest flight on american airlines from washington dc to san francisco",
        "slots": "B-flight_mod O O B-airline_name I-airline_name O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'm traveling from boston to atlanta and i 'd like to go sometime after 5 pm but i want to know what kind of airplane it 's on",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O O O O O O O B-depart_time.time_relative B-depart_time.time I-depart_time.time O O O O O O O O O O O O",
        "intent": "aircraft"
    },
    {
        "utterance": "show me the united flights from bwi to denver",
        "slots": "O O O B-airline_name O O B-fromloc.airport_code O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from pittsburgh to atlanta which leave after 5 o'clock pm tomorrow",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time I-depart_time.time B-depart_date.today_relative",
        "intent": "flight"
    },
    {
        "utterance": "does united have a flight from miami to washington dc on wednesday",
        "slots": "O B-airline_name O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the last flight from denver to boston",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is your earliest morning flight from indianapolis to charlotte",
        "slots": "O O O B-flight_mod B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to make a round trip between washington and san francisco",
        "slots": "O O O O O O B-round_trip I-round_trip O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me the earliest flight tomorrow from st. petersburg to milwaukee on a airline other than twa",
        "slots": "O O O B-flight_mod O B-depart_date.today_relative O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O B-mod O B-airline_code",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from pittsburgh to baltimore which leave thursday after 3 o'clock pm",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time I-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what price is a limousine service to new york 's la guardia",
        "slots": "O O O O B-transport_type O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name B-fromloc.airport_name I-fromloc.airport_name",
        "intent": "ground_fare"
    },
    {
        "utterance": "are there any flights from denver to pittsburgh connecting in atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-connect O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to book a flight from denver to pittsburgh on july fifteenth i 'd like it to be the cheapest flight",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number O O O O O O O B-cost_relative O",
        "intent": "flight"
    },
    {
        "utterance": "show me delta flights from dallas to denver",
        "slots": "O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which airlines have nonstop flights from kansas city to chicago",
        "slots": "O O O B-flight_stop O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "what flights are provided by delta airlines",
        "slots": "O O O O O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to go from atlanta to denver on tuesday",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights to philadelphia coming from baltimore or denver or pittsburgh",
        "slots": "O O O O B-toloc.city_name O O B-fromloc.city_name B-or B-fromloc.city_name B-or B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from new york to miami leaving on a tuesday and returning on sunday",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O B-depart_date.day_name O O O B-return_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the fares from dallas to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "all flights pittsburgh to baltimore on thursday arrival by 10 am",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest fare from denver to pittsburgh",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what flights leave pittsburgh for denver on monday night",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "on monday show me flights from baltimore to dallas",
        "slots": "O B-depart_date.day_name O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how much does it cost to fly on american from dallas to baltimore",
        "slots": "O O O O O O O O B-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me the airlines that fly between toronto and denver",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "from las vegas to phoenix",
        "slots": "O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the ground transportation available in the city of philadelphia",
        "slots": "O O O O O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show me first class flights one way tampa to st. louis",
        "slots": "O O B-class_type I-class_type O B-round_trip I-round_trip B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all nonstop flights from los angeles to pittsburgh before 5 pm on tuesday",
        "slots": "O O B-flight_stop O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "shortest flight from ontario california to orlando florida",
        "slots": "B-flight_mod O O B-fromloc.city_name B-fromloc.state_name O B-toloc.city_name B-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights to love field",
        "slots": "O O O O O B-toloc.airport_name I-toloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like information on flights from dallas fort worth to atlanta on wednesday morning",
        "slots": "O O O O O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what 's the earliest flight leaving denver for pittsburgh",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "looking for a flight to salt lake city",
        "slots": "O O O O O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'm looking for a flight from charlotte to las vegas that stops in st. louis hopefully a dinner flight how can i find that out",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-stoploc.city_name I-stoploc.city_name O O B-meal_description O O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "flight from denver to dallas fort worth",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like a flight from las vegas to detroit on monday",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the first class fares from baltimore to dallas",
        "slots": "O O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what are the flights from charlotte to atlanta returning on tuesday july thirteenth",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights arriving to denver from baltimore oakland and boston",
        "slots": "O O O O O O B-toloc.city_name O B-fromloc.city_name B-fromloc.city_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like information on twa flights from washington to philadelphia",
        "slots": "O O O O O B-airline_code O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show sunday flights from seattle to chicago",
        "slots": "O B-depart_date.day_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how many cities are served by continental with first class flights",
        "slots": "O O O O O O B-airline_name O B-class_type I-class_type O",
        "intent": "quantity"
    },
    {
        "utterance": "what flights are there from pittsburgh to los angeles",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what do you have from philadelphia to dallas on saturday morning",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "on april twenty would like to fly from denver to pittsburgh at about 8 o'clock in the morning",
        "slots": "O B-depart_date.month_name B-depart_date.day_number O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "can you tell me the afternoon nonstop flights departing from atlanta to boston",
        "slots": "O O O O O B-depart_time.period_of_day B-flight_stop O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from boston arrive in dallas fort worth before 5 pm",
        "slots": "O O O B-fromloc.city_name O O B-toloc.city_name I-toloc.city_name I-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "please show me again the first class fares from baltimore to dallas",
        "slots": "O O O O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "please show me flights from dallas fort worth to atlanta on monday",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "how many daily us air flights are there between philadelphia and pittsburgh",
        "slots": "O O B-flight_days B-airline_name I-airline_name O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "quantity"
    },
    {
        "utterance": "what flights are available friday from philadelphia to oakland",
        "slots": "O O O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights between memphis tennessee and las vegas",
        "slots": "O O O O B-fromloc.city_name B-fromloc.state_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a nonstop flight from san diego to phoenix",
        "slots": "O O O B-flight_stop O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the cities served by delta airlines",
        "slots": "O O O O O O B-airline_name I-airline_name",
        "intent": "city"
    },
    {
        "utterance": "american airlines from denver to milwaukee",
        "slots": "B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to leave from philadelphia and go to atlanta baltimore and boston please list these flights",
        "slots": "O O O O O B-fromloc.city_name O O O B-toloc.city_name B-toloc.city_name O B-toloc.city_name O O O O",
        "intent": "flight"
    },
    {
        "utterance": "show all flights from boston to denver on july thirty first",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "round trip fare from baltimore to philadelphia less than 1000 dollars",
        "slots": "B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name B-cost_relative O B-fare_amount I-fare_amount",
        "intent": "airfare"
    },
    {
        "utterance": "i want a flight from houston to memphis on tuesday morning",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me flights going from san francisco to pittsburgh first class on monday of leaving after 12 noon",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-class_type I-class_type O B-depart_date.day_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "is there a flight from denver to san francisco on continental airlines leaving after 12 o'clock in the afternoon",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i would like a nonstop flight from jfk to las vegas on march second",
        "slots": "O O O O B-flight_stop O O B-fromloc.airport_code O B-toloc.city_name I-toloc.city_name O B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show all nonstop flights from boston to atlanta",
        "slots": "O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the latest afternoon flight i can get from dallas to san francisco on first class",
        "slots": "O O O B-flight_mod B-depart_time.period_of_day O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-class_type I-class_type",
        "intent": "flight"
    },
    {
        "utterance": "show me airports near washington dc",
        "slots": "O O O O B-city_name B-state_code",
        "intent": "airport"
    },
    {
        "utterance": "i 'd like the lowest fare from denver to pittsburgh",
        "slots": "O O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what is the last flight from boston to atlanta",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what kind of airline is flight ua 281 from boston to denver",
        "slots": "O O O O O O B-airline_code B-flight_number O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "please give grounds transportation at dallas airport",
        "slots": "O O O O O B-airport_name I-airport_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what is the latest flight in the day to arrive in boston from baltimore",
        "slots": "O O O B-flight_mod O O O O O O O B-toloc.city_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from baltimore denver and pittsburgh to philadelphia where the round trip fare for each is less than 1000 dollars",
        "slots": "O O B-fromloc.city_name B-fromloc.city_name O B-fromloc.city_name O B-toloc.city_name O O B-round_trip I-round_trip O O O O B-cost_relative O B-fare_amount I-fare_amount",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from pittsburgh to philadelphia",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights between pittsburgh and san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need to fly from denver to san francisco tuesday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "630 am flight on august twenty seventh from atlanta to dallas",
        "slots": "B-depart_time.time I-depart_time.time O O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what kind of airline is flight ua 281 from boston to denver",
        "slots": "O O O O O O B-airline_code B-flight_number O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "can you tell me the latest evening flight from atlanta to denver on july seventh",
        "slots": "O O O O O B-flight_mod B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available from pittsburgh to boston on saturday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the evening flights from baltimore to atlanta",
        "slots": "O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please show me flights from pittsburgh to boston on saturday morning after 8 am",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "find all flights from philadelphia to dallas stopping in atlanta",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how much does it cost to go from downtown to logan airport",
        "slots": "O O O O O O O O O O B-toloc.airport_name I-toloc.airport_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me the flights from san francisco to dallas",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what airlines fly from philadelphia to san francisco",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "first class round trip airfare from indianapolis to memphis",
        "slots": "B-class_type I-class_type B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me all flights from atlanta to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there on delta from boston to dallas",
        "slots": "O O O O O B-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from new york to san francisco",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "all flights from washington to san francisco leaving after 2",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from indianapolis to montreal",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest fare from dallas to denver round trip",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip",
        "intent": "airfare"
    },
    {
        "utterance": "what is the cheapest round trip fare between boston and san francisco",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "how much is a us air boston to pittsburgh daily nonstop flight",
        "slots": "O O O O B-airline_name I-airline_name B-fromloc.city_name O B-toloc.city_name B-flight_days B-flight_stop O",
        "intent": "airfare"
    },
    {
        "utterance": "what northwest airlines flights leave denver before noon",
        "slots": "O B-airline_name I-airline_name O O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what flights go from charlotte to baltimore in the morning",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i am interested in a flight on an aircraft number 727 i would like to go from washington to atlanta",
        "slots": "O O O O O O O O O O B-aircraft_code O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the morning flights from boston to philadelphia",
        "slots": "O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the first class fares from baltimore to dallas",
        "slots": "O O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "list all flights on continental departing on monday before noon from denver to chicago",
        "slots": "O O O O B-airline_name O O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available from boston to washington late monday evening or early tuesday morning",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.period_mod B-depart_date.day_name B-depart_time.period_of_day B-or B-depart_time.period_mod B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights arriving at love field from all other airports",
        "slots": "O O O O O O B-toloc.airport_name I-toloc.airport_name O O O O",
        "intent": "flight"
    },
    {
        "utterance": "i want a flight that leaves from charlotte to newark that leaves in the afternoon or evening",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-depart_time.period_of_day B-or B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "information on flights from philadelphia to san francisco",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which airlines fly between boston and baltimore",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "please show me all round trip flights from burbank to tacoma",
        "slots": "O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me the flights from pittsburgh to los angeles thursday evening",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "on a flight from san francisco to atlanta that leaves before 8 am is there such a flight",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "is there a meal on delta flight 852 from san francisco to dallas fort worth",
        "slots": "O O O B-meal O B-airline_name O B-flight_number O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "meal"
    },
    {
        "utterance": "what flights are available monday from san francisco to pittsburgh",
        "slots": "O O O O B-depart_date.day_name O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from san diego to newark",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is there a flight from atlanta to san francisco which connects in dallas",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-connect O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all ground transportation in washington dc",
        "slots": "O O O O O O B-city_name B-state_code",
        "intent": "ground_service"
    },
    {
        "utterance": "what is the first class fare on united flight 352 from denver to boston",
        "slots": "O O O B-class_type I-class_type O O B-airline_name O B-flight_number O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me flights from new york to miami on a tuesday with a round trip fare less than 466 dollars",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name O O B-round_trip I-round_trip O B-cost_relative O B-fare_amount I-fare_amount",
        "intent": "flight"
    },
    {
        "utterance": "on a breakfast flight from philadelphia to dallas via atlanta",
        "slots": "O O B-meal_description O O B-fromloc.city_name O B-toloc.city_name O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the least expensive flight from atlanta to denver leaving on october twelfth",
        "slots": "O O O B-cost_relative I-cost_relative O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what is the schedule of ground transportation from washington airport into downtown",
        "slots": "O O O B-flight_time O O O O B-fromloc.airport_name I-fromloc.airport_name O O",
        "intent": "flight_time"
    },
    {
        "utterance": "show me the earliest flight on wednesday from baltimore to newark",
        "slots": "O O O B-flight_mod O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please show flights arriving in philadelphia from denver",
        "slots": "O O O O O B-toloc.city_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from san francisco that go to boston baltimore or philadelphia",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O O O B-toloc.city_name B-toloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest flight from denver to pittsburgh on july twenty sixth",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me the cheapest one way fare from baltimore to dallas",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me the airfare from pittsburgh to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "is there a flight on united airlines from boston to denver",
        "slots": "O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what city is mco",
        "slots": "O O O B-airport_code",
        "intent": "city"
    },
    {
        "utterance": "i want to go from boston to oakland",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available friday afternoon from philadelphia to oakland california",
        "slots": "O O O O B-depart_date.day_name B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name B-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from dallas to baltimore with a fare of 415 dollars",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-fare_amount I-fare_amount",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from baltimore to atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the morning flights at a 124 dollars from atlanta to boston",
        "slots": "O O B-depart_time.period_of_day O O O B-fare_amount I-fare_amount O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights fly from denver to san francisco on monday tuesday wednesday thursday and friday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name B-depart_date.day_name B-depart_date.day_name B-depart_date.day_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "list daily flights from boston to oakland using twa",
        "slots": "O B-flight_days O O B-fromloc.city_name O B-toloc.city_name O B-airline_code",
        "intent": "flight"
    },
    {
        "utterance": "what is the price of flights from indianapolis to memphis",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "which nonstop flight from atlanta to oakland leaves in the afternoon and arrives at 5 pm",
        "slots": "O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name O O O B-arrive_time.period_of_day O O O B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i need a nonstop flight from atlanta to baltimore arriving between 5 pm and 730 pm",
        "slots": "O O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_time.start_time I-arrive_time.start_time O B-arrive_time.end_time I-arrive_time.end_time",
        "intent": "flight"
    },
    {
        "utterance": "what delta leaves boston for atlanta",
        "slots": "O B-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "does united airline have any flights from dallas to san francisco",
        "slots": "O B-airline_name I-airline_name O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the fares from newark to la monday and wednesday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.day_name O B-depart_date.day_name",
        "intent": "airfare"
    },
    {
        "utterance": "eastern flies from atlanta to denver what type of aircraft do you use before 6 pm",
        "slots": "B-airline_name O O B-fromloc.city_name O B-toloc.city_name O O O O O O O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what is dl",
        "slots": "O O B-airline_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "i would like the least expensive airfare flight on sunday to pittsburgh from san francisco",
        "slots": "O O O O B-cost_relative I-cost_relative O O O B-depart_date.day_name O B-toloc.city_name O B-fromloc.city_name I-fromloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what airlines fly from boston to atlanta",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "i 'd like to go from boston to atlanta sometime after 5 pm can you tell me the flights that could do that for me",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time O O O O O O O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "list flights between denver and pittsburgh",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the first flight from dallas to houston",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what airlines go to pittsburgh",
        "slots": "O O O O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "does dl stand for delta",
        "slots": "O B-airline_code O O B-airline_name",
        "intent": "abbreviation"
    },
    {
        "utterance": "what are the flights which depart from san francisco fly to washington via indianapolis and arrive by 9 pm",
        "slots": "O O O O O O O B-fromloc.city_name I-fromloc.city_name O O B-toloc.city_name O B-stoploc.city_name O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from denver to washington dc on a wednesday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "thank you i also need to travel next wednesday evening from dallas to san francisco",
        "slots": "O O O O O O O B-depart_date.date_relative B-depart_date.day_name B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights monday night after 8 pm for dallas to boston",
        "slots": "O O O B-depart_date.day_name B-depart_time.period_of_day B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight from philadelphia to san francisco",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from san francisco to denver",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights go from pittsburgh to denver after 2 pm",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me the continental flights leaving chicago early saturday morning",
        "slots": "O O O B-airline_name O O B-fromloc.city_name B-depart_time.period_mod B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "list nonstop flights from houston to dallas which arrive before midnight",
        "slots": "O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_time.time_relative B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what is the price of american airlines flight 19 from new york to los angeles",
        "slots": "O O O O O B-airline_name I-airline_name O B-flight_number O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me all prices of economy from baltimore to dallas",
        "slots": "O O O O O B-economy O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "flights from atlanta to washington dc",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "show me your flights from atlanta to denver on june fourth",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from milwaukee to orlando on wednesday night",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i want to fly united airlines from boston to denver",
        "slots": "O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me a list of rental car fares at boston airport",
        "slots": "O O O O O B-transport_type I-transport_type O O B-airport_name I-airport_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i need to fly from nashville to tacoma first thing in the morning what is there",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-flight_mod O O O B-depart_time.period_of_day O O O",
        "intent": "flight"
    },
    {
        "utterance": "i want to depart washington april twentieth to atlanta least expensive fare",
        "slots": "O O O O B-fromloc.city_name B-depart_date.month_name B-depart_date.day_number O B-toloc.city_name B-cost_relative I-cost_relative O",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like a flight from columbus to phoenix stopping in cincinnati and serving dinner what 's available",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-stoploc.city_name O O B-meal_description O O O",
        "intent": "flight"
    },
    {
        "utterance": "now show me the flights from pittsburgh to baltimore",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how many people fly on a turboprop",
        "slots": "O O O O O O O",
        "intent": "capacity"
    },
    {
        "utterance": "i need the cheapest direct flight from atlanta to denver leaving on may seventh",
        "slots": "O O O B-cost_relative B-connect O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from san francisco to boston that leaves after 7 am",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest flight from denver to oakland",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight leaving from washington to boston at 110 pm on august twentieth",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.time I-depart_time.time O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me the united flights which go from boston to washington dc",
        "slots": "O O O B-airline_name O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "find the cheapest one way fare from boston to san francisco",
        "slots": "O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me all the flights from denver to baltimore arriving may tenth",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what is the first flight arriving in montreal from toronto friday",
        "slots": "O O O B-flight_mod O O O B-toloc.city_name O B-fromloc.city_name B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "okay we 're going from washington to denver first class ticket i 'd like to know the cost of a first class ticket",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-class_type I-class_type O O O O O O O O O O B-class_type I-class_type O",
        "intent": "airfare"
    },
    {
        "utterance": "show me the flights from columbus to charlotte",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like an afternoon flight leaving tuesday san diego to indianapolis",
        "slots": "O O O O B-depart_time.period_of_day O O B-depart_date.day_name B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "are there any flights from boston to san francisco with a stopover in dallas",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list nonstop flights from houston to dallas which arrive after 8 pm",
        "slots": "O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "looking for flights in toronto to san diego",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights from boston to san francisco on united airlines",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights to dallas from san francisco and atlanta and pittsburgh",
        "slots": "O O O O B-toloc.city_name O B-fromloc.city_name I-fromloc.city_name O B-fromloc.city_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how many flights has continental into and out of atlanta",
        "slots": "O O O O B-airline_name O O O O B-fromloc.city_name",
        "intent": "quantity"
    },
    {
        "utterance": "what ground transportation is available in denver",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what 's the lowest round trip fare from dallas to baltimore",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me us air flights from pittsburgh to san francisco first class on monday",
        "slots": "O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-class_type I-class_type O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "now list for me only the united flights that flight from oakland to boston",
        "slots": "O O O O O O B-airline_name O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what type of aircraft is used on american airline flight 315",
        "slots": "O O O O O O O B-airline_name I-airline_name O B-flight_number",
        "intent": "aircraft"
    },
    {
        "utterance": "flights from cincinnati to salt lake city",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "hi i 'd like a flight on alaska airlines from san diego to toronto please",
        "slots": "O O O O O O O B-airline_name I-airline_name O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "how much is a first class ticket from boston to san francisco",
        "slots": "O O O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i 'd like to see all flights from baltimore to philadelphia",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "from denver to baltimore",
        "slots": "O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need to know a list of flights from atlanta",
        "slots": "O O O O O O O O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me a list of flights on july twenty second leaving dc to dallas leaving dc after 6 pm",
        "slots": "O O O O O O O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O B-fromloc.state_code O B-toloc.city_name O B-fromloc.state_code B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest flight from boston to atlanta",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please show me the flights from washington to san francisco",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the list of us air flights between boston and dc",
        "slots": "O O O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "how many flights does each airline have with business class service",
        "slots": "O O O O O O O O B-class_type I-class_type O",
        "intent": "quantity"
    },
    {
        "utterance": "i need a flight from kansas city to chicago that leaves wednesday and arrives in chicago around 7 pm",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name O O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i will be staying downtown in atlanta for two hours could you tell me what the ground transportation is available",
        "slots": "O O O O O O B-city_name O O O O O O O O O O O O O",
        "intent": "ground_service"
    },
    {
        "utterance": "what is the last flight from dallas to boston",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are all of the flights into and out of atlanta 's airport",
        "slots": "O O O O O O O O O O B-fromloc.city_name I-fromloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "flights from kansas city to cleveland on wednesday before 5 pm",
        "slots": "O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "please show me continental flights from san francisco to pittsburgh on friday",
        "slots": "O O O B-airline_name O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "how many fares are there one way from tacoma to montreal",
        "slots": "O O O O O B-round_trip I-round_trip O B-fromloc.city_name O B-toloc.city_name",
        "intent": "quantity"
    },
    {
        "utterance": "airline code as",
        "slots": "O O B-airline_code",
        "intent": "airline"
    },
    {
        "utterance": "what flights from miami to indianapolis on sunday",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to fly from pittsburgh to atlanta on us air",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "american flights from chicago to los angeles morning",
        "slots": "B-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i need a round trip flight from cincinnati to san jose california",
        "slots": "O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "all fares and flights from philadelphia",
        "slots": "O O O O O B-fromloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show the flights from milwaukee to orlando on a thursday morning",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "okay i 'm sorry could you tell me what flights leave atlanta and arrive in philadelphia around 5 o'clock",
        "slots": "O O O O O O O O O O O B-fromloc.city_name O O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me the earliest flights from boston to denver on wednesday",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "how many flights go from dallas to baltimore on july nineteenth",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "quantity"
    },
    {
        "utterance": "okay for now i would like information on a flight on april twenty seventh from pittsburgh to atlanta leaving early in the morning about 8 o'clock",
        "slots": "O O O O O O O O O O O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O B-fromloc.city_name O B-toloc.city_name O B-depart_time.period_mod O O B-depart_time.period_of_day B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight arriving in charlotte from st. louis on friday",
        "slots": "O O O B-flight_mod O O O B-toloc.city_name O B-fromloc.city_name I-fromloc.city_name O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights between san francisco and philadelphia for september fifteenth",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me ground transportation information for san francisco",
        "slots": "O O O O O O B-city_name I-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "are there any flights from boston to san francisco stopping in denver",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like a return flight from baltimore to boston",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the schedule of flights from boston to denver next monday",
        "slots": "O O O B-flight_time O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.date_relative B-depart_date.day_name",
        "intent": "flight_time"
    },
    {
        "utterance": "show all nonstop flights from boston to san francisco",
        "slots": "O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "all flights from charlotte to anywhere on us air",
        "slots": "O O O B-fromloc.city_name O O O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "is the american flight 813 from boston to oakland a flight that goes straight through from boston to oakland without stopping at another city",
        "slots": "O O B-airline_name O B-flight_number O B-fromloc.city_name O B-toloc.city_name O O O O O O O B-fromloc.city_name O B-toloc.city_name B-flight_stop I-flight_stop O O O",
        "intent": "flight"
    },
    {
        "utterance": "what are the latest flights from boston to dallas on the evening of july seventh",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "flights from cleveland to kansas city",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what does the abbreviation ua mean",
        "slots": "O O O O B-airline_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "sunday 's flights between tampa and charlotte",
        "slots": "B-depart_date.day_name I-depart_date.day_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "now i need a flight on tuesday from phoenix to detroit",
        "slots": "O O O O O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "does any airline have an early afternoon flight from boston to pittsburgh",
        "slots": "O O O O O B-depart_time.period_of_day B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "could you please list all of the classes of flights there are",
        "slots": "O O O O O O O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "ground transportation in denver",
        "slots": "O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i need flight information leaving atlanta and arriving in baltimore for monday",
        "slots": "O O O O O B-fromloc.city_name O O O B-toloc.city_name O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "tell me about ground transportation in st. petersburg airport",
        "slots": "O O O O O O B-airport_name I-airport_name I-airport_name",
        "intent": "ground_service"
    },
    {
        "utterance": "please list all flights between indianapolis and orlando on the twenty seventh of december",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_number I-depart_date.day_number O B-depart_date.month_name",
        "intent": "flight"
    },
    {
        "utterance": "show me a list of ground transportation at denver",
        "slots": "O O O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what are the evening flights from atlanta to baltimore",
        "slots": "O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is there ground transportation from the dallas airport to downtown dallas",
        "slots": "O O O O O O B-fromloc.airport_name I-fromloc.airport_name O O B-toloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i would like to fly from st. paul to san jose monday morning from san jose to houston tuesday morning and from houston to st. paul on wednesday morning",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_date.day_name B-depart_time.period_of_day O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-depart_date.day_name B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight leaving boston on july first to dallas on july first",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-depart_date.month_name B-depart_date.day_number O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what flights takeoff and land at general mitchell international",
        "slots": "O O O O O O B-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "what about the flights from boston to la",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest one way fare from boston to baltimore",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what is the earliest flight from boston to san francisco on american airlines",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available from pittsburgh to baltimore on july twenty fifth 1991",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number B-depart_date.year",
        "intent": "flight"
    },
    {
        "utterance": "show all wednesday morning flights from denver to boston",
        "slots": "O O B-depart_date.day_name B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me a list of flights from san francisco to boston for august thirtieth",
        "slots": "O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what does the airline code dl stand for",
        "slots": "O O O O O B-airline_code O O",
        "intent": "airline"
    },
    {
        "utterance": "i 'd like to book an flight on american airlines from boston to san francisco with one stop in pittsburgh",
        "slots": "O O O O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-flight_stop I-flight_stop O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list flights from atlanta to boston on wednesday afternoon and thursday morning",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to travel from boston to baltimore on us air 269 please tell me the times",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name B-flight_number O O O O B-flight_time",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest fare between denver and boston",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i want to fly from atlanta to philadelphia nonstop",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "how do i get from boston to pittsburgh",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to see flights from baltimore to atlanta",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight in the morning from boston to pittsburgh",
        "slots": "O O O B-flight_mod O O O B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "are there any flights between philadelphia and denver",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like a round trip ticket from los angeles to tacoma washington",
        "slots": "O O O O B-round_trip I-round_trip O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-toloc.state_name",
        "intent": "airfare"
    },
    {
        "utterance": "i would like to book a flight from baltimore to san francisco before 12 o'clock on tuesday",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there from newark to seattle on saturday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "please list the flights from denver to phoenix",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "round trip houston to las vegas nonstop",
        "slots": "B-round_trip I-round_trip B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "show me all nonstop flights from salt lake city to cincinnati",
        "slots": "O O O B-flight_stop O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "can i rent a car in san jose too",
        "slots": "O O O O B-transport_type O B-city_name I-city_name O",
        "intent": "ground_service"
    },
    {
        "utterance": "show me the flights from baltimore to atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest american airlines flight leaving philadelphia for dallas",
        "slots": "O O O B-flight_mod B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what does the fare code y mean",
        "slots": "O O O O O B-fare_basis_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "list the fares of the delta airlines flights from boston to philadelphia",
        "slots": "O O O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i 'd like to fly from dallas to san francisco at approximately 615 pm",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "tell me about ground transportation between orlando international and orlando",
        "slots": "O O O O O O B-fromloc.airport_name I-fromloc.airport_name O B-toloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show me information on ground transportation for dallas",
        "slots": "O O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "rental cars in washington dc",
        "slots": "B-transport_type I-transport_type O B-city_name B-state_code",
        "intent": "ground_service"
    },
    {
        "utterance": "united airlines stopping in denver",
        "slots": "B-airline_name I-airline_name O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the abbreviation for canadian airlines international",
        "slots": "O O O O O B-airline_name I-airline_name I-airline_name",
        "intent": "abbreviation"
    },
    {
        "utterance": "is there a flight between san francisco and boston with a stopover at dallas fort worth",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name I-stoploc.city_name I-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want a nonstop flight from indianapolis to toronto that leaves thursday morning",
        "slots": "O O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_date.day_name B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "list the cheapest flight from charlotte to memphis",
        "slots": "O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight leaving from boston arriving in san francisco with a stopover in atlanta",
        "slots": "O O O O O O O B-fromloc.city_name O O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what airlines fly from boston to san francisco",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "what flights are available sunday afternoon from oakland to dallas",
        "slots": "O O O O B-depart_date.day_name B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want a round trip fare from new york to san jose",
        "slots": "O O O B-round_trip I-round_trip O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i 'd like to fly from atlanta to denver on august twenty ninth",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "list all the airlines that fly into general mitchell international",
        "slots": "O O O O O O O B-toloc.airport_name I-toloc.airport_name I-toloc.airport_name",
        "intent": "airline"
    },
    {
        "utterance": "what is the cost of the air taxi operation at philadelphia international airport",
        "slots": "O O O O O O B-transport_type I-transport_type I-transport_type O B-airport_name I-airport_name I-airport_name",
        "intent": "ground_fare"
    },
    {
        "utterance": "what are all the flights on delta in and out of fort worth",
        "slots": "O O O O O O B-airline_name O O O O B-fromloc.city_name I-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from pittsburgh to baltimore",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which airline provides business class flights",
        "slots": "O O O B-class_type I-class_type O",
        "intent": "airline"
    },
    {
        "utterance": "flight information on january twenty third from denver to san francisco",
        "slots": "O O O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "find travel arrangements for a round trip flight from baltimore to pittsburgh",
        "slots": "O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights leave boston and arrive in philadelphia before 7 am",
        "slots": "O O O B-fromloc.city_name O O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what flights from phoenix to las vegas on saturday",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "list all american airlines flights from phoenix to milwaukee which arrive on wednesday after 4 pm",
        "slots": "O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name O O O B-arrive_date.day_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from love field to other airports",
        "slots": "O O O O O B-fromloc.airport_name I-fromloc.airport_name O O O",
        "intent": "flight"
    },
    {
        "utterance": "list all flights arriving at general mitchell international",
        "slots": "O O O O O B-toloc.airport_name I-toloc.airport_name I-toloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "all round trip flights between new york and miami coach fare",
        "slots": "O B-round_trip I-round_trip O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-class_type O",
        "intent": "flight"
    },
    {
        "utterance": "i would like to fly from denver to pittsburgh and atlanta",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "on usa air how many flights leaving oakland on july twenty seventh to boston nonstop",
        "slots": "O B-airline_name I-airline_name O O O O B-fromloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O B-toloc.city_name B-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "boston ground transportation",
        "slots": "B-city_name O O",
        "intent": "ground_service"
    },
    {
        "utterance": "i need a flight from boston to san francisco via dallas fort worth",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-stoploc.city_name I-stoploc.city_name I-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cost of limousine service at logan airport",
        "slots": "O O O O O B-transport_type O O B-airport_name I-airport_name",
        "intent": "ground_fare"
    },
    {
        "utterance": "information on flights from pittsburgh to philadelphia",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "could you tell me about flights from philadelphia to dallas the flights should leave philadelphia in the morning",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-fromloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from philadelphia to boston",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "on monday i would like to travel from charlotte north carolina to phoenix arizona i would like to arrive in phoenix before 4 pm",
        "slots": "O B-depart_date.day_name O O O O O O B-fromloc.city_name B-fromloc.state_name I-fromloc.state_name O B-toloc.city_name B-toloc.state_name O O O O O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i also need service from dallas to boston arriving by noon",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i will need a car at new york",
        "slots": "O O O O B-transport_type O B-city_name I-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "on november twenty third of this year 1991 i 'd like to fly from atlanta to denver and i 'd like to fly on delta",
        "slots": "O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O O B-depart_date.year O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O O O O B-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what does lax stand for",
        "slots": "O O B-airport_code O O",
        "intent": "abbreviation"
    },
    {
        "utterance": "show me the air fare for the flights from baltimore to dallas",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me the airlines between boston and toronto",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "ground transportation atlanta",
        "slots": "O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "is there ground transportation from the milwaukee airport to the downtown area",
        "slots": "O O O O O O B-airport_name I-airport_name O O O O",
        "intent": "ground_service"
    },
    {
        "utterance": "okay can you tell me the earliest flight which leaves from philadelphia to dallas",
        "slots": "O O O O O O B-flight_mod O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what kind of aircraft will i be flying on if i take a first class american airlines flight from philadelphia to dallas",
        "slots": "O O O O O O O O O O O O O B-class_type I-class_type B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "aircraft"
    },
    {
        "utterance": "what economy flights are available from dallas to baltimore on july twenty fifth 1991",
        "slots": "O B-economy O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number B-depart_date.year",
        "intent": "flight"
    },
    {
        "utterance": "i would like information on flights leaving atlanta and arriving in dallas",
        "slots": "O O O O O O O B-fromloc.city_name O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to take a flight that begins in boston and lands at dallas fort worth but i 'd like to stop over in philadelphia",
        "slots": "O O O O O O O O O O B-fromloc.city_name O O O B-toloc.city_name I-toloc.city_name I-toloc.city_name O O O O O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please give me the cheapest round trip airfare from atlanta to philadelphia on august the first",
        "slots": "O O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name O B-depart_date.day_number",
        "intent": "airfare"
    },
    {
        "utterance": "flights from denver to baltimore between 10 am and 2 pm",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.start_time I-depart_time.start_time O B-depart_time.end_time I-depart_time.end_time",
        "intent": "flight"
    },
    {
        "utterance": "where does canadian airlines international fly to",
        "slots": "O O B-airline_name I-airline_name I-airline_name O O",
        "intent": "flight"
    },
    {
        "utterance": "ground transportation in westchester county",
        "slots": "O O O B-city_name I-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what is your cheapest flight from pittsburgh to denver",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "saturday flights from las vegas to montreal",
        "slots": "B-depart_date.day_name O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to leave chicago next tuesday and arrive in detroit around 6 pm",
        "slots": "O O O O B-fromloc.city_name B-depart_date.date_relative B-depart_date.day_name O O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights into love field",
        "slots": "O O O O O B-toloc.airport_name I-toloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "what does ewr mean",
        "slots": "O O B-airport_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "i need a flight from san francisco to pittsburgh from pittsburgh to new york and then new york to san francisco",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "yes on the delta flight leaving san francisco at 225 pm arriving philadelphia 1158 pm what type of equipment is used on that flight",
        "slots": "O O O B-airline_name O O B-fromloc.city_name I-fromloc.city_name O B-depart_time.time I-depart_time.time O B-toloc.city_name B-arrive_time.time I-arrive_time.time O O O O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from st. petersburg to salt lake city that arrive before noon",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name O O B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "can you tell me the cheapest one way fare from boston to san francisco",
        "slots": "O O O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "give me morning flights from atlanta to baltimore",
        "slots": "O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the minimum connection time for houston intercontinental",
        "slots": "O O O O O O O B-airport_name I-airport_name",
        "intent": "flight_time"
    },
    {
        "utterance": "please list all airline flights between denver and boston",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "show me flights first class from san francisco to pittsburgh leaving on tuesday after 8 o'clock in the morning and before 12 noon",
        "slots": "O O O B-class_type I-class_type O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O O B-depart_time.period_of_day O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "which transcontinental flight on united airlines from boston to dallas makes a stopover in philadelphia",
        "slots": "O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "on april fifteenth i would like an early morning flight from boston to atlanta",
        "slots": "O B-depart_date.month_name B-depart_date.day_number O O O O B-depart_time.period_of_day B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how can i get from the denver airport to downtown",
        "slots": "O O O O O O B-fromloc.airport_name I-fromloc.airport_name O O",
        "intent": "flight"
    },
    {
        "utterance": "do you have a delta flight to san francisco from denver on august thirtieth in the early morning",
        "slots": "O O O O B-airline_name O O B-toloc.city_name I-toloc.city_name O B-fromloc.city_name O B-depart_date.month_name B-depart_date.day_number O O B-depart_time.period_of_day B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "can you show me fares for december sixteenth from oakland to dallas one way only",
        "slots": "O O O O O O B-depart_date.month_name B-depart_date.day_number O B-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip O",
        "intent": "airfare"
    },
    {
        "utterance": "how do i get downtown from the toronto airport",
        "slots": "O O O O O O O B-fromloc.airport_name I-fromloc.airport_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i 'd like the flights from san jose to nashville on the morning of friday june third",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from milwaukee to orlando on wednesday night",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "from san francisco to denver",
        "slots": "O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me flights without fares from atlanta to baltimore",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like a flight from san diego to toronto on alaska airlines leaving around 1 pm",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "okay i 've got somebody else who wants to take a round trip ticket from charlotte to montreal",
        "slots": "O O O O O O O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what flights are there on wednesday evening from denver to sfo",
        "slots": "O O O O O B-depart_date.day_name B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.airport_code",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from pittsburgh to oakland that arrive after 10 am",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "morning flight from atlanta to philadelphia",
        "slots": "B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the lowest round trip fare from atlanta to pittsburgh",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "flights from pittsburgh to newark",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list nonstop twa flights from las vegas to new york",
        "slots": "O O B-flight_stop B-airline_code O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like a limo in denver on august seventh",
        "slots": "O O O O B-transport_type O B-fromloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "ground_service"
    },
    {
        "utterance": "in atlanta i would like information on ground transportation",
        "slots": "O B-city_name O O O O O O O",
        "intent": "ground_service"
    },
    {
        "utterance": "give me flights from chicago to seattle on saturday morning",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me the latest flight on wednesday from atlanta to washington dc",
        "slots": "O O O B-flight_mod O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight tomorrow from columbus to minneapolis",
        "slots": "O O O O B-depart_date.today_relative O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which airline has the smallest plane leaving pittsburgh and arriving in baltimore on july fourth",
        "slots": "O O O O B-mod O O B-fromloc.city_name O O O B-toloc.city_name O B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "airline"
    },
    {
        "utterance": "what does ewr mean",
        "slots": "O O B-airport_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "flights from milwaukee to orlando one way",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available on dl from dallas to atlanta on monday morning",
        "slots": "O O O O O B-airline_code O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "is there limousine service available at baltimore airport",
        "slots": "O O B-transport_type O O O B-airport_name I-airport_name",
        "intent": "ground_service"
    },
    {
        "utterance": "can i get from dallas to san francisco leaving in the morning and arriving in the morning",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-depart_time.period_of_day O O O O B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from san francisco to denver",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the prices of all flights from atlanta to washington dc",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code",
        "intent": "airfare"
    },
    {
        "utterance": "lowest fare from san francisco to los angeles",
        "slots": "B-cost_relative O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what flights on united leave la guardia for san jose and arrive around 10 pm",
        "slots": "O O O B-airline_name O B-fromloc.airport_name I-fromloc.airport_name O B-toloc.city_name I-toloc.city_name O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me the airlines between boston and denver",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "flight leaving from oakland to salt lake city",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from pittsburgh to new york city",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from san francisco to atlanta",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what delta flights from cincinnati to new york city arrive at new york city before 6 pm on saturday",
        "slots": "O B-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name O O B-toloc.city_name I-toloc.city_name I-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from atlanta please",
        "slots": "O O B-fromloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from love field to all other airports",
        "slots": "O O O O O B-fromloc.airport_name I-fromloc.airport_name O O O O",
        "intent": "flight"
    },
    {
        "utterance": "please give me a flight from boston to atlanta before 10 am in the morning",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me all the prices of flights from baltimore to dallas",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me the flights from st. petersburg to toronto that leave monday",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show flights from denver into san francisco",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what times does the late afternoon flight leave from washington for denver",
        "slots": "O B-flight_time O O B-depart_time.period_of_day I-depart_time.period_of_day O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight_time"
    },
    {
        "utterance": "dallas to oakland saturday",
        "slots": "B-fromloc.city_name O B-toloc.city_name B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "how much is a round trip fare from indianapolis to seattle",
        "slots": "O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i need to find a plane from boston to san francisco on friday",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "aircraft"
    },
    {
        "utterance": "list the nonstop flights early tuesday morning from dallas to atlanta",
        "slots": "O O B-flight_stop O B-arrive_time.period_mod B-arrive_date.day_name B-arrive_time.period_of_day O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is there ground transportation from san diego airport to the downtown area",
        "slots": "O O O O O B-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name O O O O",
        "intent": "ground_service"
    },
    {
        "utterance": "what ground transportation is available in charlotte",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what 's the cheapest fare for a round trip from indianapolis to orlando on december twenty seventh",
        "slots": "O O O B-cost_relative O O O B-round_trip I-round_trip O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "airfare"
    },
    {
        "utterance": "i 'd like to go from boston to denver at 9 o'clock saturday night",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.time I-depart_time.time B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i would like to know the first class fare on a flight from baltimore to denver",
        "slots": "O O O O O O B-class_type I-class_type O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me all flights from boston to atlanta which leave atlanta after noon tomorrow",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time B-depart_date.today_relative",
        "intent": "flight"
    },
    {
        "utterance": "give me the latest flight tomorrow on united airlines from milwaukee to tacoma",
        "slots": "O O O B-flight_mod O B-depart_date.today_relative O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what transportation is available from the dallas airport to downtown",
        "slots": "O O O O O O B-fromloc.airport_name I-fromloc.airport_name O O",
        "intent": "ground_service"
    },
    {
        "utterance": "morning flights out of san francisco arriving boston afternoon",
        "slots": "B-depart_time.period_of_day O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i would like to fly from boston to baltimore please tell me what are the times of the flights",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O O O B-flight_time O O O",
        "intent": "flight"
    },
    {
        "utterance": "show me times for coach flights between boston and baltimore on wednesday",
        "slots": "O O B-flight_time O B-class_type O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight_time"
    },
    {
        "utterance": "show me fares from miami to new york",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "and how much does it cost to travel from boston airport to downtown",
        "slots": "O O O O O O O O O B-fromloc.airport_name I-fromloc.airport_name O O",
        "intent": "airfare"
    },
    {
        "utterance": "tell me distance from orlando airport to the city",
        "slots": "O O O O B-fromloc.airport_name I-fromloc.airport_name O O O",
        "intent": "distance"
    },
    {
        "utterance": "what 's the latest flight i can get from dallas to boston",
        "slots": "O O O B-flight_mod O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "information on a flight from san francisco to philadelphia",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights go from philadelphia to dallas with a stopover in atlanta",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "does continental fly from denver to san francisco",
        "slots": "O B-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from kansas city to cleveland on wednesday",
        "slots": "O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "boston to denver monday",
        "slots": "B-fromloc.city_name O B-toloc.city_name B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the first flight from atlanta to boston on thursday september fifth that leaves after 8 am",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number O O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what airlines have business class service between boston and san francisco",
        "slots": "O O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "show me the flights on tuesday morning from charlotte to baltimore",
        "slots": "O O O O O B-depart_date.day_name B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights that go from san diego to newark by way of houston",
        "slots": "O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available from boston to denver",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from atlanta to washington",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me the flights from baltimore to pittsburgh",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the evening flights from atlanta to washington on wednesdays",
        "slots": "O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what does fare code qo mean",
        "slots": "O O O O B-fare_basis_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "what is the earliest flight from boston to denver",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest way to travel round trip from milwaukee to san francisco",
        "slots": "O O O B-cost_relative O O O B-round_trip I-round_trip O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is there a flight from boston to atlanta which leaves boston in the afternoon and arrives close to 5 pm",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-fromloc.city_name O O B-depart_time.period_of_day O O B-arrive_time.time_relative O B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show all flights from pittsburgh to san francisco",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list lowest cost flight from dallas to baltimore that serves a meal",
        "slots": "O B-cost_relative I-cost_relative O O B-fromloc.city_name O B-toloc.city_name O O O B-meal",
        "intent": "flight"
    },
    {
        "utterance": "display all flights from pittsburgh to san francisco on august second",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "does flight ua 281 from boston to denver leave on tuesday",
        "slots": "O O B-airline_code B-flight_number O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "give me a flight from newark to tampa on friday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to see the cheapest flight from atlanta to baltimore",
        "slots": "O O O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from kansas city to chicago on june sixteenth arriving around 7 o'clock in the evening",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time O O B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to see flights from pittsburgh to philadelphia",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need information on flights leaving dallas arriving in boston leaving dallas early in the morning",
        "slots": "O O O O O O B-fromloc.city_name O O B-toloc.city_name O B-fromloc.city_name B-depart_time.period_mod O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what is a flight that goes from baltimore to san francisco and arrives at san francisco at 8 pm on a friday",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-toloc.city_name I-toloc.city_name O B-arrive_time.time I-arrive_time.time O O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest flight flying from boston to atlanta before 8",
        "slots": "O O O B-cost_relative O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show prices for all flights from baltimore to dallas on july twenty ninth",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "airfare"
    },
    {
        "utterance": "what is the cheapest fare from boston to san francisco",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "list the earliest flight from st. paul to san jose",
        "slots": "O O B-flight_mod O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from salt lake city to new york city arrive next saturday before 6 pm",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name O B-arrive_date.date_relative B-arrive_date.day_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "looking for a flight from toronto to san diego",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "find a flight from toronto to san diego with a layover in dc on delta airlines",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.state_code O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from dallas to houston in the morning",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "could you please give me the round trip fare from denver to atlanta",
        "slots": "O O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me flights from atlanta to baltimore",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like the time of all flights from san francisco to pittsburgh on sunday",
        "slots": "O O O O B-flight_time O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight_time"
    },
    {
        "utterance": "what flights leave after 7 pm from boston to pittsburgh",
        "slots": "O O O B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "okay i just want to know the cheapest fare from atlanta to boston",
        "slots": "O O O O O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what ground transportation is available in boston",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show me the flights from denver to atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "okay what i would like to know is does twa flight 505 from charlotte to las vegas with a stop in st. louis serve dinner that 's twa flight 505 or 163",
        "slots": "O O O O O O O O O B-airline_code O B-flight_number O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name I-stoploc.city_name O B-meal_description O O B-airline_code O B-flight_number B-or B-flight_number",
        "intent": "flight"
    },
    {
        "utterance": "i want to fly from baltimore to dallas round trip",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip",
        "intent": "flight"
    },
    {
        "utterance": "please give me the flights from san francisco to washington dc",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-toloc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "before 10 o'clock on tuesday is there a 747 that flies from baltimore to san francisco",
        "slots": "B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-depart_date.day_name O O O B-aircraft_code O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "first class price san francisco pittsburgh round trip",
        "slots": "B-class_type I-class_type O B-fromloc.city_name I-fromloc.city_name B-fromloc.city_name B-round_trip I-round_trip",
        "intent": "airfare"
    },
    {
        "utterance": "what flights are there on wednesday evening or thursday morning from denver to sfo",
        "slots": "O O O O O B-depart_date.day_name B-depart_time.period_of_day B-or B-depart_date.day_name B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.airport_code",
        "intent": "flight"
    },
    {
        "utterance": "list nonstop flights from baltimore to newark on wednesday before noon",
        "slots": "O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name O B-arrive_date.day_name B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what fare codes cover flights from philadelphia to san francisco",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "abbreviation"
    },
    {
        "utterance": "kindly give me the type of aircraft used to fly from atlanta to denver",
        "slots": "O O O O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "aircraft"
    },
    {
        "utterance": "i 'd like to fly from philadelphia to san francisco through dallas",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights does delta have from dallas to denver after 5 o'clock",
        "slots": "O O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what is the latest flight from milwaukee to seattle tomorrow",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name B-depart_date.today_relative",
        "intent": "flight"
    },
    {
        "utterance": "what planes are used by twa",
        "slots": "O O O O O B-airline_code",
        "intent": "aircraft"
    },
    {
        "utterance": "show me flights on sunday going from san francisco to boston nonstop first class leaving after 12 noon",
        "slots": "O O O O B-depart_date.day_name O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-flight_stop B-class_type I-class_type O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "give me all nonstops from new york city to las vegas that arrive on a sunday",
        "slots": "O O O B-flight_stop O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i need the earliest flight from denver to boston that serves dinner",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "i need information on flights from kansas city missouri to salt lake city utah i am interested in only those flights on delta airlines",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name B-fromloc.state_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name B-toloc.state_name O O O O O O O O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there from boston to dallas",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight from boston to denver on monday",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "a first class flight on american to san francisco on tuesday in the next week",
        "slots": "O B-class_type I-class_type O O B-airline_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name O O B-depart_date.date_relative O",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like flights on american airlines from philadelphia to dallas arriving before 1145 am",
        "slots": "O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i need information on ground transportation from the airport in atlanta",
        "slots": "O O O O O O O O O O B-fromloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "okay how about a flight on sunday from tampa to charlotte",
        "slots": "O O O O O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list all flights into denver before noon on united airlines and northwest airlines",
        "slots": "O O O O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time O B-airline_name I-airline_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "ground transportation in phoenix",
        "slots": "O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what kind of plane is used on the earliest flight from boston to san francisco afternoon",
        "slots": "O O O O O O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_time.period_of_day",
        "intent": "aircraft"
    },
    {
        "utterance": "how much will it cost taking coach from orlando to indianapolis on december twenty ninth flying us air 311",
        "slots": "O O O O O O B-class_type O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O B-airline_name I-airline_name B-flight_number",
        "intent": "airfare"
    },
    {
        "utterance": "show flights from dallas to san francisco",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from st. paul to kansas city on friday with dinner served",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name O B-meal_description O",
        "intent": "flight"
    },
    {
        "utterance": "list the fares of us air flights from boston to philadelphia",
        "slots": "O O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me flights between denver and baltimore",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what airlines fly from boston to denver",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "okay i want a flight originating in denver going to pittsburgh",
        "slots": "O O O O O O O B-fromloc.city_name O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please tell me how many nonstop flights there are from boston to atlanta",
        "slots": "O O O O O B-flight_stop O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "quantity"
    },
    {
        "utterance": "flights from long beach to nashville",
        "slots": "O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the available ground transportation between the airport in denver and downtown",
        "slots": "O O O O O O O O O O B-fromloc.city_name O O",
        "intent": "ground_service"
    },
    {
        "utterance": "i 'd like a twa flight from las vegas to new york nonstop",
        "slots": "O O O O B-airline_code O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "i want to travel from philadelphia to boston on wednesday afternoon",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me all round trips from new york to miami leaving on tuesday",
        "slots": "O O O B-round_trip I-round_trip O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest flight from washington to san francisco on friday",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i want a flight on continental airlines leaving san francisco california arriving pittsburgh pennsylvania",
        "slots": "O O O O O B-airline_name I-airline_name O B-fromloc.city_name I-fromloc.city_name B-fromloc.state_name O B-toloc.city_name B-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights",
        "slots": "O O O O",
        "intent": "flight"
    },
    {
        "utterance": "show me the ground transportation schedule in philadelphia in the morning on wednesday",
        "slots": "O O O O O O O B-city_name O O B-period_of_day O B-day_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what kind of ground transportation can you offer me in seattle",
        "slots": "O O O O O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i would like to fly from boston to oakland what airlines fly from boston to oakland",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from san francisco to las vegas",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me a list of all the flights from baltimore to philadelphia or denver to philadelphia or pittsburgh to philadelphia",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.city_name B-or B-fromloc.city_name O B-toloc.city_name B-or B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what kind of ground transportation is there in philadelphia",
        "slots": "O O O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show flights from denver to san francisco",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is there a flight leaving san francisco to denver",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "are there any flights next monday morning from pittsburgh to san francisco",
        "slots": "O O O O B-depart_date.date_relative B-depart_date.day_name B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "fares and flights from baltimore to philadelphia",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what 's the earliest flight leaving denver for pittsburgh",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the flights from st. paul to san jose and from st. paul to houston",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what kind of airplane goes from philadelphia to san francisco monday stopping in dallas in the afternoon first class flight",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_date.day_name O O B-stoploc.city_name O O B-depart_time.period_of_day B-class_type I-class_type O",
        "intent": "aircraft"
    },
    {
        "utterance": "i need to take ten people from denver to phoenix please give me the flights during the week",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O O B-flight_mod I-flight_mod I-flight_mod",
        "intent": "flight"
    },
    {
        "utterance": "i would like an early flight from la to charlotte monday morning",
        "slots": "O O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me evening flights to baltimore",
        "slots": "O O B-period_of_day O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to go from baltimore to san francisco with a stopover in denver",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "on thursday i 'd like a flight from st. petersburg to miami",
        "slots": "O B-depart_date.day_name O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the car rentals in baltimore",
        "slots": "O O O B-transport_type I-transport_type O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what is the total schedule for delta 's flights to all airports",
        "slots": "O O O O B-flight_time O B-airline_name I-airline_name O O O O",
        "intent": "flight_time"
    },
    {
        "utterance": "i need to fly from atlanta to charlotte north carolina next monday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_name I-toloc.state_name B-depart_date.date_relative B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what kinds of ground transportation is available in dallas fort worth",
        "slots": "O O O O O O O O B-city_name I-city_name I-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "pittsburgh to denver",
        "slots": "B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please book for me a flight on twa from washington dc to san francisco earliest possible time",
        "slots": "O O O O O O O B-airline_code O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name I-toloc.city_name B-flight_mod I-flight_mod I-flight_mod",
        "intent": "flight"
    },
    {
        "utterance": "what is airline nw",
        "slots": "O O O B-airline_code",
        "intent": "airline"
    },
    {
        "utterance": "i 'd like to find a flight between dallas and philadelphia",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights from denver to philadelphia",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the afternoon flights between washington and boston",
        "slots": "O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to find a flight from kansas city to salt lake city on delta and arriving at about 8 o'clock in the evening could you please tell me the aircraft and the flight number thank you",
        "slots": "O O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name O B-airline_name O O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time O O B-arrive_time.period_of_day O O O O O O O O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "show me the latest flight from denver to boston",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights going from boston to atlanta after 6 o'clock pm on wednesday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time I-depart_time.time O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "of the flights available from dallas to baltimore on august third which airline has the least expensive flight",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number O O O O B-cost_relative I-cost_relative O",
        "intent": "flight"
    },
    {
        "utterance": "what flights from las vegas to montreal on saturday",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the ground transportation available in the city of fort worth",
        "slots": "O O O O O O O O O O B-city_name I-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what 's the last flight leaving from pittsburgh to oakland",
        "slots": "O O O B-flight_mod O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what does restriction ap 57",
        "slots": "O O O B-restriction_code I-restriction_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "i 'd like a flight from burbank to tacoma washington",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to book a flight on us air first class from cleveland to miami on february twenty second",
        "slots": "O O O O O O O O B-airline_name I-airline_name B-class_type I-class_type O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "a first class flight on american to san francisco on the coming tuesday",
        "slots": "O B-class_type I-class_type O O B-airline_name O B-toloc.city_name I-toloc.city_name O O B-depart_date.date_relative B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights leave pittsburgh and arrive in los angeles after 5 pm on thursday",
        "slots": "O O O B-fromloc.city_name O O O B-toloc.city_name I-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from denver to philadelphia arriving after 2100",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what is the round trip fare on continental 1291 from dallas to san francisco and return",
        "slots": "O O O B-round_trip I-round_trip O O B-airline_name B-flight_number O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-round_trip",
        "intent": "airfare"
    },
    {
        "utterance": "show me flights from denver to washington dc on wednesdays",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the latest flight from san francisco to washington",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list the afternoon flights from charlotte to minneapolis",
        "slots": "O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "find travel arrangements for a round trip flight from dallas to pittsburgh",
        "slots": "O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the cheapest one way flight from denver to pittsburgh",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight between denver and san francisco leaving from denver in the afternoon and arriving at 5 pm it must be a nonstop flight",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-fromloc.city_name O O B-depart_time.period_of_day O O O B-arrive_time.time I-arrive_time.time O O O O B-flight_stop O",
        "intent": "flight"
    },
    {
        "utterance": "show me round trip fares from pittsburgh to philadelphia",
        "slots": "O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "list all flights from long beach to columbus late saturday",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-depart_time.period_mod B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to schedule a flight on american airlines from philadelphia to san francisco that makes a stop in denver",
        "slots": "O O O O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show flights from pittsburgh to oakland",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "does us air have a flight from toronto to salt lake city monday may thirty first",
        "slots": "O B-airline_name I-airline_name O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what is fare code qo mean",
        "slots": "O O O O B-fare_basis_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "what flights are available from denver to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me airlines with flights from pittsburgh to boston please",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O",
        "intent": "airline"
    },
    {
        "utterance": "what 's the lowest round trip fare from bwi to any city",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.airport_code O O O",
        "intent": "airfare"
    },
    {
        "utterance": "show me the earliest nonstop flight from dallas to houston",
        "slots": "O O O B-flight_mod B-flight_stop O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want a flight that leaves thursday around 7 pm from chicago to kansas city",
        "slots": "O O O O O O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "okay could you get me a round trip ticket from indianapolis to kansas city",
        "slots": "O O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what types of aircraft can i get a first class ticket from philadelphia to dallas",
        "slots": "O O O O O O O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "aircraft"
    },
    {
        "utterance": "i need a flight from ontario to los angeles on a thursday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "does midwest express serve baltimore",
        "slots": "O B-airline_name O O B-city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights on january first 1992 from boston to san francisco",
        "slots": "O O O O O B-depart_date.month_name B-depart_date.day_number B-depart_date.year O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight on friday from newark to tampa",
        "slots": "O O O O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from new york to toronto thursday may six arriving by noon",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number O B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "how do i get to philadelphia downtown from the airport",
        "slots": "O O O O O B-toloc.city_name O O O O",
        "intent": "ground_service"
    },
    {
        "utterance": "show flights from philadelphia to san francisco",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from atlanta to baltimore and this flight should arrive at 7 pm please",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O O O O B-arrive_time.time I-arrive_time.time O",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from atlanta to philadelphia",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from ontario to orlando",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights on american airlines from fort worth to denver on the evening of july eleventh",
        "slots": "O O O O O B-airline_name I-airline_name O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "actually what are the nonstop flights from las vegas to burbank on saturday may twenty two",
        "slots": "O O O O B-flight_stop O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-arrive_date.day_name B-arrive_date.month_name B-arrive_date.day_number I-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "list all nonstop flights from la to pittsburgh before 5 pm on tuesday",
        "slots": "O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from new york to miami on a tuesday with round trip fares under 932 dollars",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name O B-round_trip I-round_trip O B-cost_relative B-fare_amount I-fare_amount",
        "intent": "flight"
    },
    {
        "utterance": "show me all the flights out of boston today",
        "slots": "O O O O O O O B-fromloc.city_name B-depart_date.today_relative",
        "intent": "flight"
    },
    {
        "utterance": "i would like information on flights from dallas to atlanta arriving in atlanta on tuesday morning",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-toloc.city_name O B-arrive_date.day_name B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "which airlines fly from boston to washington dc via other cities",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O O O",
        "intent": "airline"
    },
    {
        "utterance": "is there a flight leaving at 1505 from pittsburgh to baltimore on july twenty fifth 1991",
        "slots": "O O O O O O B-depart_time.time O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number B-depart_date.year",
        "intent": "flight"
    },
    {
        "utterance": "what flights go from boston to dallas",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how many first class flights does delta have today",
        "slots": "O O B-class_type I-class_type O O B-airline_name O B-depart_date.today_relative",
        "intent": "quantity"
    },
    {
        "utterance": "explain the fare code q",
        "slots": "O O O O B-fare_basis_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "show me flights from atlanta to philadelphia in the morning",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me round trip tickets from new york to miami",
        "slots": "O O B-round_trip I-round_trip O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i want to fly from dallas fort worth to philadelphia",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i live in montreal and i want to travel to chicago then indianapolis and then return home",
        "slots": "O O O B-fromloc.city_name O O O O O O B-toloc.city_name O B-toloc.city_name O O O O",
        "intent": "flight"
    },
    {
        "utterance": "could you please give me the cost of a round trip flight from denver to pittsburgh",
        "slots": "O O O O O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "how much does it cost to fly directly from philadelphia to san francisco on american airlines",
        "slots": "O O O O O O O B-flight_stop O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name",
        "intent": "airfare"
    },
    {
        "utterance": "what are the coach fares from charlotte to la wednesday night",
        "slots": "O O O B-class_type O O B-fromloc.city_name O B-toloc.city_name B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "airfare"
    },
    {
        "utterance": "what is the ground transportation available in fort worth texas",
        "slots": "O O O O O O O B-city_name I-city_name B-state_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what does ua stand for",
        "slots": "O O B-airline_code O O",
        "intent": "abbreviation"
    },
    {
        "utterance": "i need to fly between philadelphia and atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from pittsburgh to san francisco",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a plane that arrives in san francisco by 9 o'clock pm on friday and leaves from baltimore",
        "slots": "O O O O O O O B-toloc.city_name I-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time I-arrive_time.time O B-arrive_date.day_name O O O B-fromloc.city_name",
        "intent": "aircraft"
    },
    {
        "utterance": "show me the continental flights with meals which depart seattle on sunday for chicago",
        "slots": "O O O B-airline_name O O B-meal O O B-fromloc.city_name O B-depart_date.day_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to fly from boston to fort worth",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me the list of flights for continental airlines between boston and denver",
        "slots": "O O O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how much does it cost to get downtown from the atlanta airport by limousine",
        "slots": "O O O O O O O O O O B-fromloc.airport_name I-fromloc.airport_name O B-transport_type",
        "intent": "ground_fare"
    },
    {
        "utterance": "show me all flight from san francisco to oakland",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to find a flight from boston to atlanta",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "when can i fly from philadelphia to dallas on a saturday morning",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "display all flights from dallas to boston on july thirtieth",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "i would like some information on flights leaving boston to atlanta",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what airlines fly from boston to pittsburgh",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "all right what us air flights leave from indianapolis to san diego after 130 in the afternoon",
        "slots": "O O O B-airline_name I-airline_name O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_time.time_relative B-depart_time.time O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "how many cities are served by american airline with first class flights",
        "slots": "O O O O O O B-airline_name I-airline_name O B-class_type I-class_type O",
        "intent": "quantity"
    },
    {
        "utterance": "what ground transportation is available in denver",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "flying from pittsburgh to atlanta on september fourth what would be the cheapest flight",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number O O O O B-cost_relative O",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights dallas to boston on monday morning",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "on eastern flight 825 from atlanta to denver can you tell me what type of aircraft used before 12 noon",
        "slots": "O B-airline_name O B-flight_number O B-fromloc.city_name O B-toloc.city_name O O O O O O O O O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "please show me flights from dallas to atlanta on monday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the cheapest flight arriving in baltimore on june fourteenth starting from dallas",
        "slots": "O O O B-cost_relative O O O B-toloc.city_name O B-arrive_date.month_name B-arrive_date.day_number O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all the flights on northwest airlines from new york to milwaukee to los angeles",
        "slots": "O O O O O O B-airline_name I-airline_name O B-fromloc.city_name I-fromloc.city_name O B-stoploc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the code for business class",
        "slots": "O O O O O B-class_type I-class_type",
        "intent": "abbreviation"
    },
    {
        "utterance": "on eastern flight 825 flying from atlanta to denver can you tell me what type of aircraft is used on a flight when it leaves at 555",
        "slots": "O B-airline_name O B-flight_number O O B-fromloc.city_name O B-toloc.city_name O O O O O O O O O O O O O O O O O B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what northwest flights leave denver before noon",
        "slots": "O B-airline_name O O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "please find the cheapest fare from boston to san francisco",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i 'd like the cheapest one way fare from boston to san francisco",
        "slots": "O O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what is the cheapest ticket from baltimore to san francisco on friday august thirtieth",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number",
        "intent": "airfare"
    },
    {
        "utterance": "give me a list of the morning flights from atlanta to boston",
        "slots": "O O O O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "does us air fly from dc to dallas",
        "slots": "O B-airline_name I-airline_name O O B-fromloc.state_code O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights arriving at love field",
        "slots": "O O O O O O B-toloc.airport_name I-toloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "which flights go from pittsburgh to atlanta in the evening",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "how many stops are on all flights from boston to san francisco that depart before 12 o'clock noon",
        "slots": "O O B-flight_stop O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time I-arrive_time.time",
        "intent": "quantity"
    },
    {
        "utterance": "please list the flight schedule from baltimore to san francisco on friday nights",
        "slots": "O O O B-flight_time I-flight_time O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight_time"
    },
    {
        "utterance": "all flights from san francisco to los angeles",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the cheapest round trip fare between dallas and baltimore",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "list all flights from nashville to seattle",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list any flights from oakland california to philadelphia on tuesday",
        "slots": "O O O O O B-fromloc.city_name B-fromloc.state_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "us 771 pittsburgh to philadelphia what is the fare",
        "slots": "B-airline_code B-flight_number B-fromloc.city_name O B-toloc.city_name O O O O",
        "intent": "airfare"
    },
    {
        "utterance": "on the flight from baltimore to san francisco on us air leaving at 420 what type of aircraft is used",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name O O B-depart_time.time O O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "show flights and fare information from pittsburgh connecting through denver to oakland",
        "slots": "O O O O O O B-fromloc.city_name B-connect O B-stoploc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from new york to los angeles with stop in milwaukee",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights arriving in pittsburgh monday evening from san francisco that first class",
        "slots": "O O O O O B-toloc.city_name B-arrive_date.day_name B-arrive_time.period_of_day O B-fromloc.city_name I-fromloc.city_name O B-class_type I-class_type",
        "intent": "flight"
    },
    {
        "utterance": "list all american airlines flight from milwaukee to phoenix on sunday",
        "slots": "O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight from dallas to philadelphia",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are flights from boston to st. petersburg",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from boston to pittsburgh on wednesday of next week which leave boston after 2 o'clock pm",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-depart_date.date_relative O O O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "flights from cleveland to miami",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what round trip flights between atlanta and denver qualify for fare code qx",
        "slots": "O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name O O O O B-fare_basis_code",
        "intent": "flight"
    },
    {
        "utterance": "find the flights that leave philadelphia and arrive in dallas by noon",
        "slots": "O O O O O B-fromloc.city_name O O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from san jose to nashville on thursday the twentieth",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight between pittsburgh and denver that serves breakfast",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from boston to atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how much is a limousine between dallas fort worth international airport and dallas",
        "slots": "O O O O B-transport_type O B-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name O O B-toloc.city_name",
        "intent": "ground_fare"
    },
    {
        "utterance": "what airlines fly from boston to washington",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "what flights are available between philadelphia and denver on september sixteenth",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available from atlanta to washington dc on wednesday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "are there delta flights leaving denver",
        "slots": "O O B-airline_name O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list the flights from new york to miami on a tuesday",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "now show me the flights from denver to atlanta",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to fly from boston to san francisco",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights go from pittsburgh to newark after 823 in the morning",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "round trip flights from salt lake city to cincinnati nonstop flights if possible",
        "slots": "B-round_trip I-round_trip O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-flight_stop O O O",
        "intent": "flight"
    },
    {
        "utterance": "where does continental fly to from chicago",
        "slots": "O O B-airline_name O O O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the meaning of meal code s",
        "slots": "O O O O O B-meal_code I-meal_code I-meal_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "the latest flight from baltimore to oakland please and i 'd like a meal with that",
        "slots": "O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O O O O O O B-meal O O",
        "intent": "flight"
    },
    {
        "utterance": "a flight on continental airlines leaving boston and going to denver",
        "slots": "O O O B-airline_name I-airline_name O B-fromloc.city_name O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'm looking for a flight from boston to denver that has no stopovers and is only in the afternoon",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-flight_stop O O O O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what 's the cheapest one way flight from oakland to boston",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how many cities are served by twa with first class flights",
        "slots": "O O O O O O B-airline_code O B-class_type I-class_type O",
        "intent": "quantity"
    },
    {
        "utterance": "show me the cheapest fare from dallas to baltimore",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me the airlines for flights to or from love field",
        "slots": "O O O O O O O O O B-fromloc.airport_name I-fromloc.airport_name",
        "intent": "airline"
    },
    {
        "utterance": "i need a flight from indianapolis to toronto reaching toronto on thursday morning",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-toloc.city_name O B-arrive_date.day_name B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from boston to pittsburgh leaving wednesdays and thursdays",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "pittsburgh to atlanta please with a stopover in fort worth",
        "slots": "B-fromloc.city_name O B-toloc.city_name O O O O O B-stoploc.city_name I-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "find travel arrangements for a round trip flight from dallas to pittsburgh",
        "slots": "O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "airports",
        "slots": "O",
        "intent": "airport"
    },
    {
        "utterance": "show me all the flights from burbank to denver",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to book on delta airlines their earliest possible flight from washington dc to san francisco",
        "slots": "O O O O O O B-airline_name I-airline_name O B-flight_mod O O O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "can you list the cheapest round trip fare from orlando to kansas city",
        "slots": "O O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what flights from pittsburgh to newark on monday",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to fly from boston to denver with a stop in philadelphia",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what kind of ground transportation is there in denver",
        "slots": "O O O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show me round trip flights from denver to baltimore that offer first class service on united",
        "slots": "O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name O O B-class_type I-class_type O O B-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "show me next wednesday 's flights between phoenix and milwaukee",
        "slots": "O O B-depart_date.date_relative B-depart_date.day_name I-depart_date.day_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "all flights from boston to washington dc on the tenth of november",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O O B-depart_date.day_number O B-depart_date.month_name",
        "intent": "flight"
    },
    {
        "utterance": "what is ord",
        "slots": "O O B-airport_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "show me the flights arriving around noon in baltimore from denver",
        "slots": "O O O O O B-arrive_time.time_relative B-arrive_time.time O B-toloc.city_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all the flights that fly into general mitchell international",
        "slots": "O O O O O O O B-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there from cleveland to miami on us air that arrive in miami before 4 pm",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name O O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "latest flight from houston to san jose",
        "slots": "B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "daily flights from newark to cleveland departing 5 o'clock pm",
        "slots": "B-flight_days O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.time I-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight you have that leaves philadelphia to dallas",
        "slots": "O O O B-flight_mod O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what does fn under fare code mean",
        "slots": "O O B-fare_basis_code O O O O",
        "intent": "abbreviation"
    },
    {
        "utterance": "i would like to fly from denver to pittsburgh on the cheapest flight possible",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-cost_relative O O",
        "intent": "flight"
    },
    {
        "utterance": "does the philadelphia airport have a name",
        "slots": "O O B-airport_name I-airport_name O O O",
        "intent": "airport"
    },
    {
        "utterance": "i need a flight from new york city to montreal tomorrow",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-depart_date.today_relative",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight from boston that will arrive in denver",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "can you list all flights departing from toronto and landing in san diego with a stopover in denver",
        "slots": "O O O O O O O B-fromloc.city_name O O O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from washington to toronto",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to make a trip from washington to san francisco",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to know what flights you have available coach or economy class from baltimore to dallas",
        "slots": "O O O O O O O O O B-class_type B-or B-economy I-economy O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the cheapest fare from baltimore to dallas",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i want to go from boston to oakland on united and leave at 838 am which flight should i take",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name O O O B-depart_time.time I-depart_time.time O O O O O",
        "intent": "flight"
    },
    {
        "utterance": "show all airlines flying from pittsburgh to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "show me all flights from san diego to new york nonstop",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "i would like to leave around 7 o'clock in the morning",
        "slots": "O O O O O B-depart_time.time_relative B-depart_time.time I-depart_time.time O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from san francisco to pittsburgh",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights does delta have from denver to dallas after 5",
        "slots": "O O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what ground transportation is there in atlanta",
        "slots": "O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show me flights leaving from baltimore to dallas",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "tell me about flights from atlanta to charlotte next monday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.date_relative B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the distance from toronto international airport to toronto",
        "slots": "O O O O O B-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name O B-toloc.city_name",
        "intent": "distance"
    },
    {
        "utterance": "show me the cheapest one way flights from pittsburgh to dallas leaving pittsburgh between noon and 2 pm",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name O B-fromloc.city_name O B-depart_time.start_time O B-depart_time.end_time I-depart_time.end_time",
        "intent": "flight"
    },
    {
        "utterance": "would you be able to put me on a flight with delta leaving the morning of august twenty seventh from baltimore to san francisco",
        "slots": "O O O O O O O O O O O B-airline_name O O B-depart_time.period_of_day O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flight from denver to san francisco in the afternoon",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show flights from memphis to las vegas",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the flights arriving in baltimore from boston before 10 am on august third",
        "slots": "O O O O O B-toloc.city_name O B-fromloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time O B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight between boston and washington",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from pittsburgh to baltimore on thursday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights and fares from boston to philadelphia",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight+airfare"
    },
    {
        "utterance": "describe pittsburgh airport",
        "slots": "O B-airport_name I-airport_name",
        "intent": "airport"
    },
    {
        "utterance": "what is the ground transportation from boston airport to boston downtown",
        "slots": "O O O O O O B-fromloc.airport_name I-fromloc.airport_name O B-toloc.city_name O",
        "intent": "ground_service"
    },
    {
        "utterance": "show me all flights direct and connecting from boston to pittsburgh that arrive in pittsburgh before 10 am",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "chicago to milwaukee",
        "slots": "B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need flight information on thursday leaving pittsburgh and arriving in baltimore in the morning",
        "slots": "O O O O O B-depart_date.day_name O B-fromloc.city_name O O O B-toloc.city_name O O B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "is there a flight from philadelphia to oakland with a stop in dallas",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "shortest evening flight from tampa to cincinnati",
        "slots": "B-flight_mod B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the arrival time in san francisco for the 755 am flight leaving washington",
        "slots": "O O O B-flight_time I-flight_time O B-fromloc.city_name I-fromloc.city_name O O B-depart_time.time I-depart_time.time O O B-fromloc.city_name",
        "intent": "flight_time"
    },
    {
        "utterance": "what nonstop flights are available from oakland to pittsburgh",
        "slots": "O B-flight_stop O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want a return flight from washington to dallas on american airlines",
        "slots": "O O O B-round_trip O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "show me oakland to dallas flights",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from boston to dallas",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from toronto to montreal reaching montreal early on friday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-toloc.city_name B-arrive_time.period_mod O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like a twa flight from atlanta to san francisco with a stopover in denver",
        "slots": "O O O O B-airline_code O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me the round trip coach fare from baltimore to dallas",
        "slots": "O O O B-round_trip I-round_trip B-class_type O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what flights depart from charlotte to newark that leave in the afternoon or leave in the evening",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-depart_time.period_of_day B-or O O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "is there a delta flight from boston to denver",
        "slots": "O O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from new york to los angeles after 10 am",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me ground transportation in denver during weekdays",
        "slots": "O O O O O B-city_name O O",
        "intent": "ground_service"
    },
    {
        "utterance": "list united flights from denver to san francisco on tuesdays or wednesdays",
        "slots": "O B-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name B-or B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "okay i 'm looking for a flight from tampa to st. louis leaving before 10 am any day",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time O O",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights arriving at dallas",
        "slots": "O O O O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me round trip fares from new york to miami",
        "slots": "O O B-round_trip I-round_trip O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "which airlines have flights from san francisco to washington by way of indianapolis",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O B-stoploc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "show me the flights from philadelphia to dallas with a stop in atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from pittsburgh to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like the flight number and the time for the cheapest fare that is the least expensive first class fare from san francisco to pittsburgh leaving after 8 pm monday night",
        "slots": "O O O O O O O O B-flight_time O O B-cost_relative O O O O B-cost_relative I-cost_relative B-class_type I-class_type O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight_no"
    },
    {
        "utterance": "i 'd like to know the earliest flights from boston to atlanta georgia",
        "slots": "O O O O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "what are all monday flights from denver to san francisco on united airlines",
        "slots": "O O O B-depart_date.day_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "lowest fare from san francisco to san diego",
        "slots": "B-cost_relative O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "how many flights does twa have in business class",
        "slots": "O O O O B-airline_code O O B-class_type I-class_type",
        "intent": "quantity"
    },
    {
        "utterance": "what are the flights available after 3 pm between denver and san francisco",
        "slots": "O O O O O B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from westchester county to st. paul",
        "slots": "O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me the cheapest flight from charlotte to long beach",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want all flights from atlanta to washington dc on thursday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there from tampa to charlotte",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please show me the return flights from miami to new york",
        "slots": "O O O O B-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from baltimore or denver or pittsburgh that fly to philadelphia",
        "slots": "O O O O O B-fromloc.city_name B-or B-fromloc.city_name B-or B-fromloc.city_name O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from san francisco to boston that leaves after 10 pm",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "give me information on flights from atlanta to washington dc leaving on thursday before 0900",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "cheapest fare from indianapolis to seattle",
        "slots": "B-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what are the flights from kansas city to burbank on saturday may twenty two on america west",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the nonstop flights on america west or southwest air from kansas city to burbank on saturday may twenty two",
        "slots": "O O O B-flight_stop O O B-airline_name I-airline_name B-or B-airline_name O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-arrive_date.day_name B-arrive_date.month_name B-arrive_date.day_number I-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "do you have a twa flight leaving early in the morning to san francisco from denver",
        "slots": "O O O O B-airline_code O O B-depart_time.period_mod O O B-depart_time.period_of_day O B-toloc.city_name I-toloc.city_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please show me the return flight number from toronto to st. petersburg",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight_no"
    },
    {
        "utterance": "show me the flights from salt lake city to st. petersburg late night on tuesday",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-depart_time.period_mod B-depart_time.period_of_day O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "are there any united airlines flights between boston and dallas",
        "slots": "O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me fares from miami to new york",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what flights return from denver to philadelphia on a saturday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "all am flights departing pittsburgh arriving denver",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'm looking for a flight from pittsburgh to san francisco",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from boston to pittsburgh after 1700 hours on wednesday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "is us air",
        "slots": "O B-airline_name I-airline_name",
        "intent": "airline"
    },
    {
        "utterance": "what is the earliest morning flight from san francisco to boston",
        "slots": "O O O B-flight_mod B-depart_time.period_of_day O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list flights leaving denver and arriving in orlando on saturday departing after 12 pm",
        "slots": "O O O B-fromloc.city_name O O O B-toloc.city_name O B-arrive_date.day_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "do any us air flights leave from san francisco",
        "slots": "O O B-airline_name I-airline_name O O O B-fromloc.city_name I-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights on united from san francisco to boston with fare code qx",
        "slots": "O O O O B-airline_name O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O B-fare_basis_code",
        "intent": "flight"
    },
    {
        "utterance": "show me all the flights from baltimore to columbus",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights go from san francisco to washington via indianapolis",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "can you tell me the flights that go from boston to atlanta sometime after 5 pm",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what does fare code qw mean",
        "slots": "O O O O B-fare_basis_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "please list all delta flights from kansas city to salt lake city",
        "slots": "O O O B-airline_name O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from washington dc to san francisco with a stopover in denver",
        "slots": "O O O O O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "all round trip flights between new york and miami business class fare",
        "slots": "O B-round_trip I-round_trip O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-class_type I-class_type O",
        "intent": "flight"
    },
    {
        "utterance": "what flights are there from pittsburgh to san francisco on friday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'm flying from boston to dallas",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the flights from philadelphia to san francisco via dallas",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "does continental fly from denver to pittsburgh",
        "slots": "O B-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how many different flight classes are there",
        "slots": "O O O O O O O",
        "intent": "quantity"
    },
    {
        "utterance": "on july eighth i 'd like a flight from newark to orlando in the morning",
        "slots": "O B-depart_date.month_name B-depart_date.day_number O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "are there any flights after 9 pm from san francisco to washington",
        "slots": "O O O O B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what type of aircraft is used flying from atlanta to denver before 12 noon",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "aircraft"
    },
    {
        "utterance": "show me all the flights to baltimore after 6 o'clock pm",
        "slots": "O O O O O O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "are there wednesday morning flights between pittsburgh and boston",
        "slots": "O O B-depart_date.day_name B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the next smallest plane after a turboprop",
        "slots": "O O O O B-mod O O O O",
        "intent": "aircraft"
    },
    {
        "utterance": "show me city served both by nationair and canadian airlines international",
        "slots": "O O O O O O B-airline_name O B-airline_name I-airline_name I-airline_name",
        "intent": "city"
    },
    {
        "utterance": "how long does it take to get from denver to oakland",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "distance"
    },
    {
        "utterance": "do you have a 747 that flies from san francisco to baltimore",
        "slots": "O O O O B-aircraft_code O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the flights from pittsburgh to san francisco on thursday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "do you have an afternoon flight leaving in the afternoon going from boston to san francisco with a stopover in dallas",
        "slots": "O O O O B-depart_time.period_of_day O O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all the flights from milwaukee to orlando that leave after noon on wednesday and before noon on thursday",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.time_relative B-depart_time.time O B-depart_date.day_name O B-depart_time.time_relative B-depart_time.time O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from las vegas to phoenix",
        "slots": "O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'm interested in flights from denver to pittsburgh",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the fare from boston to oakland on united airlines",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "airfare"
    },
    {
        "utterance": "how much is the ground transportation between atlanta and downtown",
        "slots": "O O O O O O O B-fromloc.city_name O O",
        "intent": "ground_fare"
    },
    {
        "utterance": "show me the cheapest flights from san francisco to philadelphia",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the one way flight from detroit to westchester county with the highest fare",
        "slots": "O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-cost_relative O",
        "intent": "flight"
    },
    {
        "utterance": "tell me about ground transportation between the dallas fort worth airport and downtown dallas",
        "slots": "O O O O O O O B-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name O O B-toloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "could you tell me what morning flights are available from oakland to denver before 10 am",
        "slots": "O O O O O B-depart_time.period_of_day O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "how many nonstop flights going from dallas to oakland july twenty seventh",
        "slots": "O O B-flight_stop O O O B-fromloc.city_name O B-toloc.city_name B-arrive_date.month_name B-arrive_date.day_number I-arrive_date.day_number",
        "intent": "quantity"
    },
    {
        "utterance": "are there any flights next monday morning from pittsburgh to san francisco",
        "slots": "O O O O B-depart_date.date_relative B-depart_date.day_name B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like a flight tomorrow late from nashville to houston with dinner please",
        "slots": "O O O O O B-depart_date.today_relative B-depart_time.period_mod O B-fromloc.city_name O B-toloc.city_name O B-meal_description O",
        "intent": "flight"
    },
    {
        "utterance": "i want to fly boston to san francisco",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all the saturday flights from pittsburgh to baltimore",
        "slots": "O O O O B-depart_date.day_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the fares of midway airlines flights from boston to philadelphia",
        "slots": "O O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "show me all flights that arrive in philadelphia from baltimore denver or pittsburgh",
        "slots": "O O O O O O O B-toloc.city_name O B-fromloc.city_name B-fromloc.city_name B-or B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights go from newark to boston after 5 pm",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i would like to know some information on flights leaving philadelphia arriving in pittsburgh in the afternoon",
        "slots": "O O O O O O O O O O B-fromloc.city_name O O B-toloc.city_name O O B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "is there a flight from baltimore to san francisco with a stop in denver on twa",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name O B-airline_code",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from pittsburgh to philadelphia",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list departure times from denver to philadelphia which are later than 10 o'clock and earlier than 2 pm",
        "slots": "O B-flight_time I-flight_time O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.time_relative O B-depart_time.time I-depart_time.time O B-depart_time.time_relative O B-depart_time.time I-depart_time.time",
        "intent": "flight_time"
    },
    {
        "utterance": "show me the flights from love field",
        "slots": "O O O O O B-fromloc.airport_name I-fromloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from atlanta to washington dc on thursday morning",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "flights from washington august second",
        "slots": "O O B-fromloc.city_name B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to fly round trip from boston to pittsburgh",
        "slots": "O O O O O B-round_trip I-round_trip O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list flights from atlanta to philly",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "does eastern airlines fly early in the morning between logan and bwi",
        "slots": "O B-airline_name I-airline_name O B-depart_time.period_mod O O B-depart_time.period_of_day O B-fromloc.airport_name O B-toloc.airport_code",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from atlanta to baltimore",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to see the flights from denver to philadelphia again",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "what aircraft is co 1209",
        "slots": "O O O B-airline_code B-flight_number",
        "intent": "aircraft"
    },
    {
        "utterance": "is there a flight on eastern airlines from boston to denver",
        "slots": "O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is there a united airlines flight from miami to washington dc arriving around noon",
        "slots": "O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O B-arrive_time.time_relative B-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "display all flights from san francisco to boston on august eighth",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "flight leaving chicago to nashville",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me flights from atlanta to baltimore",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how much is a round trip fare from nashville to seattle",
        "slots": "O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what flights go from dallas to baltimore",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show any flights leaving san francisco on sunday and arriving in pittsburgh",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-depart_date.day_name O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me one way flights from milwaukee to orlando leaving on wednesday morning",
        "slots": "O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "give me the flights for american airline from dallas to san francisco",
        "slots": "O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from boston to baltimore",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "like information on flights from san francisco to boston on thursday morning",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "please list the flight times from pittsburgh to newark",
        "slots": "O O O B-flight_time I-flight_time O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight_time"
    },
    {
        "utterance": "flights from boston to pittsburgh",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from any city land at general mitchell international",
        "slots": "O O O O O O O B-toloc.airport_name I-toloc.airport_name I-toloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "give me all the flights from miami to chicago on american airlines",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to fly to baltimore",
        "slots": "O O O O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the first class flights from denver to baltimore",
        "slots": "O O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which airlines have first class flights today",
        "slots": "O O O B-class_type I-class_type O B-depart_date.today_relative",
        "intent": "airline"
    },
    {
        "utterance": "what is ua",
        "slots": "O O B-airline_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "what flights are there from newark to tampa",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "all flights from boston to washington dc after 5 pm on november eleventh economy class",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-depart_date.month_name B-depart_date.day_number B-economy I-economy",
        "intent": "flight"
    },
    {
        "utterance": "what would be cost of a round trip from pittsburgh to san francisco",
        "slots": "O O O O O O B-round_trip I-round_trip O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "is there a limousine service available from the pittsburgh airport",
        "slots": "O O O B-transport_type O O O O B-fromloc.airport_name I-fromloc.airport_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i want information on flights from atlanta to washington dc i want to leave after 4 pm on wednesday or before 9 am on thursday",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O O O O B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-depart_date.day_name B-or B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "american flights to houston from cincinnati",
        "slots": "B-airline_name O O B-toloc.city_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "on april eighth i would like to book a flight from charlotte to baltimore",
        "slots": "O B-depart_date.month_name B-depart_date.day_number O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list a round trip fare from kansas city to minneapolis flights",
        "slots": "O O B-round_trip I-round_trip O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O",
        "intent": "airfare"
    },
    {
        "utterance": "what are the flights from milwaukee to tampa",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the evening flights from philadelphia to atlanta",
        "slots": "O O O B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "find a flight between denver and oakland the flight should be in the afternoon and arrive close to 5 pm the flight should be nonstop",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O O O O O O B-depart_time.period_of_day O O B-arrive_time.time_relative O B-arrive_time.time I-arrive_time.time O O O O B-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "list flights from dallas to san francisco",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which airline has the most arrivals in atlanta",
        "slots": "O O O O B-mod O O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "show me all flights both direct and connecting to either san francisco or oakland from boston that arrive before 2 pm",
        "slots": "O O O O O O O O O O B-toloc.city_name I-toloc.city_name B-or B-toloc.city_name O B-fromloc.city_name O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show flights from denver to oakland that arrive after 12 o'clock",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what is the latest flight from san francisco to boston",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the fares on all flights round trip from pittsburgh to oakland",
        "slots": "O O O O O O O B-round_trip I-round_trip O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "tell me about ground transportation at salt lake city",
        "slots": "O O O O O O B-city_name I-city_name I-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show me the dinner flights from baltimore to oakland",
        "slots": "O O O B-meal_description O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from denver to philadelphia",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to travel from denver to pittsburgh",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from dc to denver",
        "slots": "O O B-fromloc.state_code O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to leave philadelphia and arrive in atlanta on a thursday",
        "slots": "O O O O B-fromloc.city_name O O O B-toloc.city_name O O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from los angeles to pittsburgh on monday afternoon",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me all the cheapest fares from new york to miami leaving on tuesday",
        "slots": "O O O O B-cost_relative O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name",
        "intent": "airfare"
    },
    {
        "utterance": "what is the latest evening flight leaving san francisco for washington",
        "slots": "O O O B-flight_mod B-depart_time.period_of_day O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'm interested in flying from atlanta to boston i 'd like to fly during breakfast",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O O O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "ground transportation please in the city of boston between airport and downtown",
        "slots": "O O O O O B-city_name I-city_name I-city_name O O O O",
        "intent": "ground_service"
    },
    {
        "utterance": "what flights from toronto to philadelphia",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "is there a flight between oakland and boston with a stopover in dallas fort worth on twa",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-stoploc.city_name I-stoploc.city_name I-stoploc.city_name O B-airline_code",
        "intent": "flight"
    },
    {
        "utterance": "show me airline abbreviations",
        "slots": "O O O O",
        "intent": "airline"
    },
    {
        "utterance": "leaving denver flying to san francisco before 10 am what type of aircraft is used",
        "slots": "O B-fromloc.city_name O O B-toloc.city_name I-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O O O O O O",
        "intent": "aircraft"
    },
    {
        "utterance": "what airline uses the code hp",
        "slots": "O O O O O B-airline_code",
        "intent": "airline"
    },
    {
        "utterance": "show flights from pittsburgh into san francisco arriving after 12 noon",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "is there a red eye flight from san jose to nashville on wednesday the nineteenth of may",
        "slots": "O O O B-flight_mod I-flight_mod O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-depart_date.day_number O B-depart_date.month_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like a nonstop flight from indianapolis to san diego that serves dinner what 's available",
        "slots": "O O O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-meal_description O O O",
        "intent": "flight"
    },
    {
        "utterance": "what flights from las vegas to phoenix on saturday",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "list all flights on continental which leave seattle and arrive in chicago departing on sunday after 430 pm",
        "slots": "O O O O B-airline_name O O B-fromloc.city_name O O O B-toloc.city_name O O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "could you please tell me the airlines that fly from toronto to san diego",
        "slots": "O O O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "show me the ground transportation in the salt lake city airport",
        "slots": "O O O O O O O B-airport_name I-airport_name I-airport_name I-airport_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what flights are there from boston to denver on monday morning",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from charlotte to columbus",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how many first class flights does delta airlines have",
        "slots": "O O B-class_type I-class_type O O B-airline_name I-airline_name O",
        "intent": "quantity"
    },
    {
        "utterance": "show me early friday morning flights from san francisco to boston",
        "slots": "O O B-depart_time.period_mod B-depart_date.day_name B-depart_time.period_of_day O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from san francisco to oakland",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to know the earliest flight from boston to san francisco",
        "slots": "O O O O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need information from denver to pittsburgh",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "how much is a flight from washington to montreal",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "list the earliest flights from st. paul to san jose",
        "slots": "O O B-flight_mod O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "hi i 'm calling from boston i 'd like to make a flight to either orlando or los angeles",
        "slots": "O O O O O B-fromloc.city_name O O O O O O O O O B-toloc.city_name B-or B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "can you list all flights leaving from st. louis and arriving in milwaukee",
        "slots": "O O O O O O O B-fromloc.city_name I-fromloc.city_name O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "can you list the earliest flights from oakland to salt lake city on thursday",
        "slots": "O O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "do you have a flight from philadelphia to san francisco with a stopover in dallas",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which airlines have flights between philadelphia and pittsburgh",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "i want a flight from long beach to st. louis that stops in dallas",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like a flight between boston and atlanta on any day at one in the afternoon",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O O O O B-depart_time.time O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "how many seats in a 734",
        "slots": "O O O O O B-aircraft_code",
        "intent": "capacity"
    },
    {
        "utterance": "i would like an early morning flight from chicago into seattle on continental airlines",
        "slots": "O O O O B-depart_time.period_of_day B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what types of meals are available",
        "slots": "O O O B-meal O O",
        "intent": "meal"
    },
    {
        "utterance": "show me flights from pittsburgh to san francisco on monday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "first flights and fares from pittsburgh to atlanta on a thursday",
        "slots": "B-flight_mod O O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name",
        "intent": "flight+airfare"
    },
    {
        "utterance": "what flights are available from denver to philadelphia with stopover in pittsburgh",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from st. paul to kansas city on friday with supper served",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name O B-meal_description O",
        "intent": "flight"
    },
    {
        "utterance": "round trip fares from denver to philadelphia less than 1000 dollars",
        "slots": "B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name B-cost_relative O B-fare_amount I-fare_amount",
        "intent": "airfare"
    },
    {
        "utterance": "i want to fly dallas to san francisco on monday july eighth",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "list all the airlines flying between washington and denver",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "i would like information on flights from san francisco to pittsburgh leaving after 8 pm monday night",
        "slots": "O O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "is there a flight between philadelphia and denver that leaves philadelphia around 2 o'clock in the afternoon",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what are the flights from boston to washington on october fifteenth 1991",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number B-depart_date.year",
        "intent": "flight"
    },
    {
        "utterance": "what are the prices of the flights from dallas to baltimore",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i 'd like to fly from boston to san francisco",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what type of ground transportation is available at logan airport",
        "slots": "O O O O O O O O B-airport_name I-airport_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show me all the northwest flights from new york to milwaukee that leave at 720 am",
        "slots": "O O O O B-airline_name O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what flights are available on wednesday from atlanta to washington dc",
        "slots": "O O O O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight leaving washington to san francisco",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights to san francisco from philadelphia stopping in dallas",
        "slots": "O O O O B-toloc.city_name I-toloc.city_name O B-fromloc.city_name O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "are there any flights from denver to pittsburgh with stops in atlanta",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "can you list all flights that depart from orlando to kansas city",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is ground transportation between the san francisco airport and the city",
        "slots": "O O O O O O B-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name O O O",
        "intent": "ground_service"
    },
    {
        "utterance": "the most expensive flight between boston and philadelphia",
        "slots": "O B-cost_relative I-cost_relative O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the earliest flight from denver to las vegas",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what time does the tuesday morning 755 flight leaving washington arrive in san francisco",
        "slots": "O B-flight_time O O B-depart_date.day_name B-depart_time.period_of_day B-depart_time.time O O B-fromloc.city_name O O B-toloc.city_name I-toloc.city_name",
        "intent": "flight_time"
    },
    {
        "utterance": "can you show me the economy fare flights from baltimore to dallas",
        "slots": "O O O O O B-economy O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what is fare code y mean",
        "slots": "O O O O B-fare_basis_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "show me a list of flights from denver to baltimore on united for august third",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-airline_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "round trip fares new york to san jose",
        "slots": "B-round_trip I-round_trip O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what is the earliest flight from boston to san francisco on november seventh",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "list the flights arriving in atlanta from boston between 4 and 8 pm",
        "slots": "O O O O O B-toloc.city_name O B-fromloc.city_name O B-arrive_time.start_time O B-arrive_time.end_time I-arrive_time.end_time",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from boston to dfw",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.airport_code",
        "intent": "flight"
    },
    {
        "utterance": "i want the flights from denver to pittsburgh",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the first flight that goes from atlanta to baltimore that serves breakfast",
        "slots": "O O O B-flight_mod O O O O B-fromloc.city_name O B-toloc.city_name O O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "what flights from pittsburgh to atlanta on wednesday morning serves breakfast",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "flights from miami to cleveland",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which are the least expensive flights between dallas and baltimore on july nineteenth",
        "slots": "O O O B-cost_relative I-cost_relative O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "i need a flight from montreal quebec to san diego california leaving this sunday",
        "slots": "O O O O O B-fromloc.city_name B-fromloc.state_name O B-toloc.city_name I-toloc.city_name B-toloc.state_name O B-depart_date.date_relative B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cost of a flight from boston to denver",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "from washington dc to philadelphia departing in the afternoon",
        "slots": "O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name O O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i would like to travel from indianapolis to houston",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all the flights that arrive in baltimore from anywhere between 1850 and midnight",
        "slots": "O O O O O O O O B-toloc.city_name O O O B-arrive_time.start_time O B-arrive_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "which delta flights depart from san francisco heading toward boston after 12 noon",
        "slots": "O B-airline_name O O O B-fromloc.city_name I-fromloc.city_name O O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what about a car rental in denver",
        "slots": "O O O B-transport_type I-transport_type O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "can i take a single airline from la to charlotte to newark back to la",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-toloc.city_name O O B-fromloc.city_name",
        "intent": "airline"
    },
    {
        "utterance": "i need a flight from cincinnati to san jose leaving after 6 in the evening",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_time.time_relative B-depart_time.time O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i need to know what flights leave atlanta on sunday evening and arrive in baltimore",
        "slots": "O O O O O O O B-fromloc.city_name O B-depart_date.day_name B-depart_time.period_of_day O O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from miami to denver",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list all american airline flights which leave phoenix on wednesday and stop at milwaukee",
        "slots": "O O B-airline_name I-airline_name O O O B-fromloc.city_name O B-depart_date.day_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what does fare code qo mean",
        "slots": "O O O O B-fare_basis_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "list the american airlines flights from dallas to san francisco",
        "slots": "O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "find a transcontinental flight on american airlines from boston to san francisco that makes a stopover in denver",
        "slots": "O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "ground transportation denver",
        "slots": "O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what flights are available wednesday morning from boston to denver",
        "slots": "O O O O B-depart_date.day_name B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd need information please on a flight from washington dc san francisco california",
        "slots": "O O O O O O O O O B-fromloc.city_name B-fromloc.state_code B-fromloc.city_name I-fromloc.city_name B-fromloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to see the flights from denver to philadelphia",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me the least expensive first class round trip ticket on us air from cleveland to miami",
        "slots": "O O O B-cost_relative I-cost_relative B-class_type I-class_type B-round_trip I-round_trip O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i would like a nonstop flight between pittsburgh and philadelphia leaving in the afternoon and arriving in the vicinity of 5 pm",
        "slots": "O O O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name O O O B-arrive_time.period_of_day O O O O B-arrive_time.time_relative O B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "please show me early morning flights from atlanta to philadelphia on wednesday",
        "slots": "O O O B-depart_time.period_of_day B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to fly from philadelphia to dallas",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest flight from atlanta to pittsburgh one way",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip",
        "intent": "flight"
    },
    {
        "utterance": "what northwest airline flights leave denver before noon",
        "slots": "O B-airline_name I-airline_name O O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "i want to leave before 8 in the morning what flight should i take to atlanta from boston",
        "slots": "O O O O B-depart_time.time_relative B-depart_time.time O O B-depart_time.period_of_day O O O O O O B-toloc.city_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from san francisco to boston on thursday",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from boston to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list all flights from atlanta to baltimore on wednesday and thursday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "list all nonstop flights from los angeles to pittsburgh which arrive before 5 pm on tuesday",
        "slots": "O O B-flight_stop O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "may i have a listing of flights from minneapolis to long beach california on tuesday",
        "slots": "O O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-toloc.state_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i am looking for the cheapest fare from indianapolis to orlando on december twenty seventh",
        "slots": "O O O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "airfare"
    },
    {
        "utterance": "afternoon flight from denver to san francisco",
        "slots": "B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are your flights from dallas to baltimore",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights do you have today from san francisco to pittsburgh",
        "slots": "O O O O O B-depart_date.today_relative O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what kind of aircraft does delta fly before 8 am on august second from boston to denver",
        "slots": "O O O O O B-airline_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-depart_date.month_name B-depart_date.day_number O B-fromloc.city_name O B-toloc.city_name",
        "intent": "aircraft"
    },
    {
        "utterance": "what are the restrictions on the cheapest one way fare between boston and oakland",
        "slots": "O O O O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "restriction"
    },
    {
        "utterance": "are there any flights from boston to oakland that stop",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "list flights from pittsburgh to atlanta on the evening of august sixth",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O O B-depart_time.period_of_day O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "flights and fares from denver to oakland",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight+airfare"
    },
    {
        "utterance": "please give me the united airlines flights from denver to baltimore that are the first class flights please",
        "slots": "O O O O B-airline_name I-airline_name O O B-fromloc.city_name O B-toloc.city_name O O O B-class_type I-class_type O O",
        "intent": "flight"
    },
    {
        "utterance": "is twa flight 497766 from st. petersburg to milwaukee with one stop available tomorrow morning",
        "slots": "O B-airline_code O B-flight_number O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-flight_stop I-flight_stop O B-depart_date.today_relative B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "what flights leave denver before noon on northwest airlines",
        "slots": "O O O B-fromloc.city_name B-depart_time.time_relative B-depart_time.time O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to fly between boston and san francisco",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from westchester county to san francisco daily",
        "slots": "O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name B-flight_days",
        "intent": "flight"
    },
    {
        "utterance": "find a nonstop flight between denver and oakland leaving in the afternoon and arriving near 5 pm",
        "slots": "O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name O O O B-arrive_time.period_of_day O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what is the latest flight from salt lake city to phoenix",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is your last trip from washington to boston on august twenty seventh",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like to go from boston to san francisco",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "can you list all flights from chicago to milwaukee",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "list the number of flights leaving boston for dallas fort worth before 9 am in the morning",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O O B-depart_time.period_of_day",
        "intent": "quantity"
    },
    {
        "utterance": "show me flights arriving in baltimore from pittsburgh between 4 and 5 pm",
        "slots": "O O O O O B-toloc.city_name O B-fromloc.city_name O B-arrive_time.start_time O B-arrive_time.end_time I-arrive_time.end_time",
        "intent": "flight"
    },
    {
        "utterance": "please give me flights from atlanta to boston on wednesday and thursday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from cleveland to memphis",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the delta flights from san francisco to boston",
        "slots": "O O O B-airline_name O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from san francisco to boston on august thirty first",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "is there a flight on delta airlines from boston to denver",
        "slots": "O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flight numbers from minneapolis to long beach on june twenty six",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight_no"
    },
    {
        "utterance": "get me a first class flight on american to san francisco on tuesday next week",
        "slots": "O O O B-class_type I-class_type O O B-airline_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name B-depart_date.date_relative O",
        "intent": "flight"
    },
    {
        "utterance": "please list the flight times from pittsburgh to newark",
        "slots": "O O O B-flight_time I-flight_time O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight_time"
    },
    {
        "utterance": "show me the flights from los angeles to pittsburgh which arrive at pittsburgh on monday",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O O B-toloc.city_name O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like an afternoon flight from denver colorado to dallas texas",
        "slots": "O O O O B-depart_time.period_of_day O O B-fromloc.city_name B-fromloc.state_name O B-toloc.city_name B-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cost of a ticket going from denver to boston july twenty fifth 1991",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number B-depart_date.year",
        "intent": "airfare"
    },
    {
        "utterance": "give me information on flights from atlanta to washington dc on wednesday after 4 pm and thursday before 9 am",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what kind of ground transportation is available in atlanta",
        "slots": "O O O O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i 'd like to find a flight from miami florida to las vegas nevada that would arrive before 4 pm on sunday",
        "slots": "O O O O O O O O B-fromloc.city_name B-fromloc.state_name O B-toloc.city_name I-toloc.city_name B-toloc.state_name O O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me ground transportation in baltimore",
        "slots": "O O O O O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "could you show me all flights from montreal to charlotte",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from san francisco to minneapolis",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from philadelphia to san francisco with one stop in dallas",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-flight_stop I-flight_stop O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights go from denver to san francisco",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like also to book a one way flight from pittsburgh to atlanta the cheapest one on july twentieth",
        "slots": "O O O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name O B-cost_relative O O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "is there a thursday night flight from pittsburgh to san francisco on us air",
        "slots": "O O O B-depart_date.day_name B-depart_time.period_of_day O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from denver to dc on wednesday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.state_code O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest one way ticket from denver to pittsburgh",
        "slots": "O O O B-cost_relative B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "list types of aircraft that fly between boston and san francisco",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "aircraft"
    },
    {
        "utterance": "show me all first class prices from dallas to baltimore",
        "slots": "O O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "please list the flights taking off and landing on general mitchell international airport",
        "slots": "O O O O O O O O O B-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "which flights from pittsburgh to atlanta have the lowest coach class fares",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O O B-cost_relative B-class_type I-class_type O",
        "intent": "flight"
    },
    {
        "utterance": "what is the lowest cost fare that delta has between boston and san francisco",
        "slots": "O O O B-cost_relative I-cost_relative O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "list all round trip flights from indianapolis to orlando departing either on december twenty seventh or on december twenty eighth",
        "slots": "O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name O O O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number B-or O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from minneapolis to san diego that arrive before 7 pm",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "what 's the capacity of a 733",
        "slots": "O O O O O O B-aircraft_code",
        "intent": "capacity"
    },
    {
        "utterance": "show me flights from baltimore to dallas",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from boston to pittsburgh",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "train to newark",
        "slots": "B-transport_type O B-city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "i want information on flights from atlanta to washington dc give me information on flights after 4 pm on wednesday",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code O O O O O B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the ground transportation from oakland to san francisco",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "what flights are available tuesday afternoon from pittsburgh to atlanta",
        "slots": "O O O O B-depart_date.day_name B-depart_time.period_of_day O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like information on boston to washington",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please list for me the flights on united airlines between boston and denver",
        "slots": "O O O O O O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights on wednesday morning boston to denver for united airlines first class",
        "slots": "O O O O B-depart_date.day_name B-depart_time.period_of_day B-fromloc.city_name O B-toloc.city_name O B-airline_name I-airline_name B-class_type I-class_type",
        "intent": "flight"
    },
    {
        "utterance": "show me flights leaving from denver colorado to pittsburgh pennsylvania on wednesdays after 5 pm",
        "slots": "O O O O O B-fromloc.city_name B-fromloc.state_name O B-toloc.city_name B-toloc.state_name O B-depart_date.day_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "how many united flights are there from san francisco please",
        "slots": "O O B-airline_name O O O O B-fromloc.city_name I-fromloc.city_name O",
        "intent": "quantity"
    },
    {
        "utterance": "show me one way flights from tampa to st. louis departing before 10 am",
        "slots": "O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "list daily flights from denver to boston",
        "slots": "O B-flight_days O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest breakfast flight from philadelphia to fort worth",
        "slots": "O O O B-flight_mod B-meal_description O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from washington to boston on friday",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights does delta have between dallas and denver",
        "slots": "O O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from dallas to baltimore",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "are there any thrift economy flights to san francisco from boston",
        "slots": "O O O B-class_type B-economy O O B-toloc.city_name I-toloc.city_name O B-fromloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the cheapest flight from long beach to memphis",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the available flights from san francisco to boston on november twenty fourth",
        "slots": "O O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "which flights are between boston and baltimore washington",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "i want a list of flights from pittsburgh to baltimore on thursday that arrive in baltimore before 10 am",
        "slots": "O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show morning flights from san francisco to pittsburgh",
        "slots": "O B-depart_time.period_of_day O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i need information flight information for tuesday on a flight leaving baltimore bound for dallas",
        "slots": "O O O O O O B-depart_date.day_name O O O O B-fromloc.city_name O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights leave la guardia for san jose and arrive 10 pm",
        "slots": "O O O B-fromloc.airport_name I-fromloc.airport_name O B-toloc.city_name I-toloc.city_name O O B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show me the flight with the smallest seating capacity which leaves pittsburgh and arrives in baltimore on june fourteenth",
        "slots": "O O O O O O B-mod O O O O B-fromloc.city_name O O O B-toloc.city_name O B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "give me the flights from new york city to las vegas on sunday and the flights from memphis to las vegas on sunday",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what aircraft has the largest seating capacity",
        "slots": "O O O O B-mod O O",
        "intent": "aircraft"
    },
    {
        "utterance": "what is the latest return flight from atlanta to boston",
        "slots": "O O O B-flight_mod O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from denver to pittsburgh which serve dinner",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-meal_description",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight that eastern has between boston and washington",
        "slots": "O O O B-flight_mod O O B-airline_name O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights do you have available from denver dallas and pittsburgh into baltimore",
        "slots": "O O O O O O O B-fromloc.city_name B-fromloc.city_name O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me boston to oakland flights",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name O",
        "intent": "flight"
    },
    {
        "utterance": "list all flights arriving and departing at general mitchell international",
        "slots": "O O O O O O O B-fromloc.airport_name I-fromloc.airport_name I-fromloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the price of a first class ticket from atlanta to san francisco",
        "slots": "O O O O O O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "is there ground transportation from the atlanta airport to downtown atlanta",
        "slots": "O O O O O O B-fromloc.airport_name I-fromloc.airport_name O O B-toloc.city_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show me the flights from pittsburgh to philadelphia",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me the flights from san francisco to washington dc for december first",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-toloc.state_code O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights on thursday from atlanta to oakland which arrive in oakland before 5 o'clock pm and serve a meal",
        "slots": "O O O O O B-depart_date.day_name O B-fromloc.city_name O B-toloc.city_name O O O B-toloc.city_name B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time I-arrive_time.time O O O B-meal",
        "intent": "flight"
    },
    {
        "utterance": "what airport is at tampa",
        "slots": "O O O O B-city_name",
        "intent": "airport"
    },
    {
        "utterance": "what flights are available from pittsburgh to baltimore on july twenty fifth 1991",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number B-depart_date.year",
        "intent": "flight"
    },
    {
        "utterance": "flights to baltimore",
        "slots": "O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights leaving charlotte to atlanta around 7 pm next tuesday",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time B-depart_date.date_relative B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "all flights from miami to new york",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like an early morning nonstop flight from new york to las vegas on february twenty eighth",
        "slots": "O O O O B-depart_time.period_of_day B-depart_time.period_of_day B-flight_stop O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-arrive_date.month_name B-arrive_date.day_number I-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "what aircraft is used on delta flight 1222 from kansas city to salt lake city",
        "slots": "O O O O O B-airline_name O B-flight_number O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "aircraft"
    },
    {
        "utterance": "what are the flights from washington dc to denver",
        "slots": "O O O O O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what northwest flights stop in denver",
        "slots": "O B-airline_name O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "please show me the flights from washington dc to san francisco california",
        "slots": "O O O O O O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name I-toloc.city_name B-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "list all round trip flights from orlando to kansas city",
        "slots": "O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'm interested in the cheapest fare from washington to fort worth",
        "slots": "O O O O O B-cost_relative O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "list the nonstop flights from denver to washington dc",
        "slots": "O O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code",
        "intent": "flight"
    },
    {
        "utterance": "what is the cost of a round trip flight from pittsburgh to atlanta beginning on april twenty fifth and returning on may sixth",
        "slots": "O O O O O O B-round_trip I-round_trip O O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O O O B-return_date.month_name B-return_date.day_number",
        "intent": "airfare"
    },
    {
        "utterance": "which united airlines flight flies across this continent and leaves from boston goes to dallas and makes a stopover in philadelphia",
        "slots": "O B-airline_name I-airline_name O O O O O O O O B-fromloc.city_name O O B-toloc.city_name O O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what ground transportation is available at the atlanta airport",
        "slots": "O O O O O O O B-airport_name I-airport_name",
        "intent": "ground_service"
    },
    {
        "utterance": "show me flights from new york to miami",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "do you have a 9 o'clock flight from boston to philadelphia",
        "slots": "O O O O B-depart_time.time I-depart_time.time O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "could you please give me information concerning american airlines a flight from washington dc to philadelphia the earliest one in the morning as possible",
        "slots": "O O O O O O O B-airline_name I-airline_name O O O B-fromloc.city_name B-fromloc.state_code O B-toloc.city_name O B-flight_mod O O O B-depart_time.period_of_day O O",
        "intent": "flight"
    },
    {
        "utterance": "list nonstop flights from burbank to denver arriving by 6 pm",
        "slots": "O B-flight_stop O O B-fromloc.city_name O B-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time",
        "intent": "flight"
    },
    {
        "utterance": "list all afternoon flights on united airlines from san francisco to denver",
        "slots": "O O B-depart_time.period_of_day O O B-airline_name I-airline_name O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from dallas to houston on sunday",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "what 's the fare from washington to boston",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "can you show me flights from baltimore to dallas",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show all monday flights from san francisco to pittsburgh",
        "slots": "O O B-depart_date.day_name O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what are the coach fares for flights from charlotte to newark tuesday evening",
        "slots": "O O O B-class_type O O O O B-fromloc.city_name O B-toloc.city_name B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "airfare"
    },
    {
        "utterance": "show me flights which leave from boston on july twenty second arriving in pittsburgh",
        "slots": "O O O O O O B-fromloc.city_name O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights go from dallas to denver after 3 pm",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-depart_time.time_relative B-depart_time.time I-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "show flights from dallas to oakland",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from kansas city to chicago leave next wednesday returning the following day",
        "slots": "O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O B-depart_date.date_relative B-depart_date.day_name O B-return_date.today_relative I-return_date.today_relative I-return_date.today_relative",
        "intent": "flight"
    },
    {
        "utterance": "what flights from houston to milwaukee on friday in the evening on american airlines",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name O O B-depart_time.period_of_day O B-airline_name I-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the latest flight from philadelphia to boston",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from salt lake city to st. petersburg on wednesday",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-depart_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "i would like to see the economy fares for denver to philadelphia",
        "slots": "O O O O O O B-economy O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "i would like to fly from boston to baltimore what time are the flights in the afternoon",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-flight_time O O O O O B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "i need a first class ticket on united airlines from denver to baltimore scheduled for december seventeenth",
        "slots": "O O O B-class_type I-class_type O O B-airline_name I-airline_name O B-fromloc.city_name O B-toloc.city_name O O B-depart_date.month_name B-depart_date.day_number",
        "intent": "airfare"
    },
    {
        "utterance": "what delta flights are available to fly from philadelphia to boston",
        "slots": "O B-airline_name O O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "which airlines fly from boston to washington dc",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code",
        "intent": "airline"
    },
    {
        "utterance": "show me all flights from philadelphia to baltimore",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights between new york city and las vegas",
        "slots": "O O O O B-fromloc.city_name I-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "give me the flights from chicago to seattle on saturday morning",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day",
        "intent": "flight"
    },
    {
        "utterance": "list all the flights that arrive at general mitchell international",
        "slots": "O O O O O O O B-toloc.airport_name I-toloc.airport_name I-toloc.airport_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like a flight from indianapolis to toronto leaving thursday morning nonstop",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day B-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "what does us mean",
        "slots": "O O B-airline_code O",
        "intent": "abbreviation"
    },
    {
        "utterance": "i 'd like to fly from philadelphia to san francisco with a stopover in dallas",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O O O O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the fare on november seventh going one way from san francisco to oakland",
        "slots": "O O O O O B-depart_date.month_name B-depart_date.day_number O B-round_trip I-round_trip O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare"
    },
    {
        "utterance": "what 's the airport at orlando",
        "slots": "O O O O O B-city_name",
        "intent": "airport"
    },
    {
        "utterance": "show me all flights from atlanta to washington with prices",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O",
        "intent": "flight"
    },
    {
        "utterance": "i want to fly from boston to san francisco",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "flights from denver to seattle on saturday morning on continental",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_time.period_of_day O B-airline_name",
        "intent": "flight"
    },
    {
        "utterance": "what is fare code h",
        "slots": "O O O O B-fare_basis_code",
        "intent": "abbreviation"
    },
    {
        "utterance": "show me the cheapest fares from san diego to miami one way",
        "slots": "O O O B-cost_relative O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name B-round_trip I-round_trip",
        "intent": "airfare"
    },
    {
        "utterance": "what are my choices of flights to get from charlotte to minneapolis arriving about 7 pm in minneapolis",
        "slots": "O O O O O O O O O B-fromloc.city_name O B-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i 'd like a flight from washington that stops in denver and goes on to san francisco",
        "slots": "O O O O O O B-fromloc.city_name O O O B-stoploc.city_name O O O O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "do you have any flights from denver to baltimore via dallas",
        "slots": "O O O O O O B-fromloc.city_name O B-toloc.city_name O B-stoploc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the earliest flight departing san francisco and arriving in oakland on november eighth",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name I-fromloc.city_name O O O B-toloc.city_name O B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "flight from philadelphia to dallas arriving before 4 pm on saturday",
        "slots": "O O B-fromloc.city_name O B-toloc.city_name O B-arrive_time.time_relative B-arrive_time.time I-arrive_time.time O B-arrive_date.day_name",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from pittsburgh to baltimore",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "on july twenty third an early flight on american from philadelphia to san francisco",
        "slots": "O B-depart_date.month_name B-depart_date.day_number I-depart_date.day_number O B-flight_mod O O B-airline_name O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me flights from dallas to atlanta",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me prices and times for first class travel from baltimore to dallas next summer",
        "slots": "O O O O B-flight_time O B-class_type I-class_type O O B-fromloc.city_name O B-toloc.city_name O O",
        "intent": "airfare"
    },
    {
        "utterance": "looking for a flight from dc to denver colorado",
        "slots": "O O O O O B-fromloc.state_code O B-toloc.city_name B-toloc.state_name",
        "intent": "flight"
    },
    {
        "utterance": "i want a flight from philadelphia to dallas that at least has one stop",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O O B-mod O B-flight_stop I-flight_stop",
        "intent": "flight"
    },
    {
        "utterance": "show me the flights from baltimore to dallas",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "all flights from dallas to san francisco",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from new york to miami on a tuesday with round trip fare less than 932 dollars",
        "slots": "O O O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name O O B-depart_date.day_name O B-round_trip I-round_trip O B-cost_relative O B-fare_amount I-fare_amount",
        "intent": "flight"
    },
    {
        "utterance": "what flights available between pittsburgh and baltimore on august eleventh",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.month_name B-depart_date.day_number",
        "intent": "flight"
    },
    {
        "utterance": "show me all flights from denver to philadelphia on saturday after sunday which leave after noon",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name O B-depart_date.day_name B-depart_date.date_relative B-depart_date.day_name O O B-depart_time.time_relative B-depart_time.time",
        "intent": "flight"
    },
    {
        "utterance": "list all flights from boston to oakland",
        "slots": "O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what is the smallest aircraft that flies from pittsburgh to baltimore arriving may seventh",
        "slots": "O O O B-mod O O O O B-fromloc.city_name O B-toloc.city_name O B-arrive_date.month_name B-arrive_date.day_number",
        "intent": "aircraft"
    },
    {
        "utterance": "what is the last flight from san francisco to dallas fort worth",
        "slots": "O O O B-flight_mod O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "i want to fly from baltimore to philadelphia",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what flights from seattle to salt lake city",
        "slots": "O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name I-toloc.city_name",
        "intent": "flight"
    },
    {
        "utterance": "what ground transportation is available at the baltimore airport",
        "slots": "O O O O O O O B-airport_name I-airport_name",
        "intent": "ground_service"
    },
    {
        "utterance": "in economy class from dallas to baltimore arriving july seventh i 'd like to know what 's the cheapest ticket possible",
        "slots": "O B-economy I-economy O B-fromloc.city_name O B-toloc.city_name O B-arrive_date.month_name B-arrive_date.day_number O O O O O O O O B-cost_relative O O",
        "intent": "airfare"
    },
    {
        "utterance": "what ground transportation is available from the pittsburgh airport to downtown and how much does it cost",
        "slots": "O O O O O O O B-fromloc.airport_name I-fromloc.airport_name O O O O O O O O",
        "intent": "ground_service+ground_fare"
    },
    {
        "utterance": "show me the costs and times for flights from san francisco to atlanta",
        "slots": "O O O O O B-flight_time O O O B-fromloc.city_name I-fromloc.city_name O B-toloc.city_name",
        "intent": "airfare+flight_time"
    },
    {
        "utterance": "show me the cheapest fare in the database",
        "slots": "O O O B-cost_relative O O O O",
        "intent": "cheapest"
    },
    {
        "utterance": "i want to fly from detroit to st. petersburg on northwest airlines and leave around 9 am tell me what aircraft are used by this flight and tell me the flight number",
        "slots": "O O O O O B-fromloc.city_name O B-toloc.city_name I-toloc.city_name O B-airline_name I-airline_name O O B-depart_time.time_relative B-depart_time.time I-depart_time.time O O O O O O O O O O O O O O O",
        "intent": "aircraft+flight+flight_no"
    }
]