[{'role': 'USR', 'utterance': 'Hi, Mary.'}
 {'role': 'SYS', 'utterance': 'Oh, hi. Sorry, but you are?'}
 {'role': 'USR', 'utterance': 'Peter, Peter Parker from your math class.'}
 {'role': 'SYS', 'utterance': 'Oh, Peter, how are you?'}
 {'role': 'USR', 'utterance': "Fine, thanks. Actually I'm working on our assignment and I can't seem to figure out the last problem. And the teaching assistant is out of town. So I was wondering if you could help me."}
 {'role': 'SYS', 'utterance': 'You mean like now? I have swimming practice in a few minutes. And then I have to study for a biology exam. I could meet you right after dinner.'}
 {'role': 'USR', 'utterance': "Ah, that's bad for me. I have a meeting for the Torch."}]
{'role': 'SYS', 'utterance': 'The what?'}