[{'role': 'USR', 'utterance': 'Where can I buy textbooks?'}
 {'role': 'SYS', 'utterance': 'First, you need to have the list of books for your class. Do you have that?'}
 {'role': 'USR', 'utterance': 'Yes, I have that.'}
 {'role': 'SYS', 'utterance': 'Well, when you have that, you can take it over to the bookstore. Can you find it?'}
 {'role': 'USR', 'utterance': "No, I don't know where the bookstore is."}
 {'role': 'SYS', 'utterance': "Just pass the gym and it's the first door on your left. Were you aware that you can also turn in your old textbooks for money?"}
 {'role': 'USR', 'utterance': 'Really? How can I do that?'}]
{'role': 'SYS', 'utterance': 'Take your used textbooks with you and give them to the representative near the entrance. He will pay you for them. Are you going today?'}