[{'role': 'USR', 'utterance': 'Ben, what are you doing?'}
 {'role': 'SYS', 'utterance': "Well, I would say that I'm just drifting - - here, in the pool."}
 {'role': 'USR', 'utterance': 'Why?'}
 {'role': 'SYS', 'utterance': "Well, it's very comfortable just to drift here."}
 {'role': 'USR', 'utterance': 'Have you thought about graduate school?'}]
{'role': 'SYS', 'utterance': 'No.'}