instruction: i'd like a round trip flight from KANSAS CITY to CHICAGO on wednesday 5 26 arriving at 1900
response: SELECT DISTINCT flight_id FROM flight WHERE ((((arrival_time = 1900 AND flight_id IN (SELECT FLIGHT_FAREalias0.flight_id FROM flight_fare AS FLIGHT_FAREalias0 WHERE FLIGHT_FAREalias0.fare_id IN (SELECT FAREalias0.fare_id FROM fare AS FAREalias0 WHERE (FAREalias0.fare_basis_code IN (SELECT FARE_BASISalias0.fare_basis_code FROM fare_basis AS FARE_BASISalias0 WHERE FARE_BASISalias0.basis_days IN (SELECT DAYSalias1.days_code FROM days AS DAYSalias1 WHERE DAYSalias1.day_name IN (SELECT DATE_DAYalias1.day_name FROM date_day AS DATE_DAYalias1 WHERE DATE_DAYalias1.day_number = 26 AND DATE_DAYalias1.month_number = 5 AND DATE_DAYalias1.year = 1991))) AND NOT FAREalias0.round_trip_cost IS NULL)))) AND flight_days IN (SELECT DAYSalias0.days_code FROM days AS DAYSalias0 WHERE DAYSalias0.day_name IN (SELECT DATE_DAYalias0.day_name FROM date_day AS DATE_DAYalias0 WHERE DATE_DAYalias0.day_number = 26 AND DATE_DAYalias0.month_number = 5 AND DATE_DAYalias0.year = 1991))) AND to_airport IN (SELECT AIRPORT_SERVICEalias1.airport_code FROM airport_service AS AIRPORT_SERVICEalias1 WHERE AIRPORT_SERVICEalias1.city_code IN (SELECT CITYalias1.city_code FROM city AS CITYalias1 WHERE CITYalias1.city_name = 'CHICAGO'))) AND from_airport IN (SELECT AIRPORT_SERVICEalias0.airport_code FROM airport_service AS AIRPORT_SERVICEalias0 WHERE AIRPORT_SERVICEalias0.city_code IN (SELECT CITYalias0.city_code FROM city AS CITYalias0 WHERE CITYalias0.city_name = 'KANSAS CITY')))