[{'role': 'USR', 'utterance': "The service is really slow here. I've been trying to get the waiter's attention for the last ten minutes."}
 {'role': 'SYS', 'utterance': "I hope he takes our order soon. Otherwise I'll be late for my class at two o'clock."}
 {'role': 'USR', 'utterance': 'Me, too. I have a class at 2 as well.'}
 {'role': 'SYS', 'utterance': "I've noticed you have a math book. Do you like the summer school here?"}
 {'role': 'USR', 'utterance': "It's pretty good. I think I've learned a lot."}
 {'role': 'SYS', 'utterance': 'Yeah, I only wish the class were a little smaller, but I like my teachers a lot. They are very kind and patient.'}
 {'role': 'USR', 'utterance': 'I see. By the way, where are you from?'}]
{'role': 'SYS', 'utterance': "I'm from Boston. How about you?"}