[{'role': 'USR', 'utterance': 'Are we supposed to get off right here?'}
 {'role': 'SYS', 'utterance': 'I think so ; hurry up and get off.'}
 {'role': 'USR', 'utterance': 'Where are we?'}
 {'role': 'SYS', 'utterance': "I don't know."}
 {'role': 'USR', 'utterance': 'You said this was the right stop.'}
 {'role': 'SYS', 'utterance': 'I think I was wrong.'}
 {'role': 'USR', 'utterance': 'Did we get off the bus too early?'}]
{'role': 'SYS', 'utterance': "I don't know ; it kind of looks like we did."}