[{'role': 'USR', 'utterance': "Is there a city where it's always warm?"}
 {'role': 'SYS', 'utterance': "Yes, there are many cities where it's almost always warm. San Diego, for example."}
 {'role': 'USR', 'utterance': "Are there any other cities where it's always hot?"}
 {'role': 'SYS', 'utterance': 'Many. Most of the cities in the southern part of the United States are hot all year.'}
 {'role': 'USR', 'utterance': 'But why do so many people live there?'}
 {'role': 'SYS', 'utterance': 'Most people grow accustomed to the climate, but there are many others who complain about it all the time.'}
 {'role': 'USR', 'utterance': 'Are there any cities where it rains a lot?'}]
{'role': 'SYS', 'utterance': 'Several. Two good examples are Seattle, in the state of Washington, and Portland, Oregon.'}