[{'role': 'USR', 'utterance': 'Cigarette?'}
 {'role': 'SYS', 'utterance': 'Oh, uh. . . Thanks. Henry, do you have a light?'}
 {'role': 'USR', 'utterance': 'Sorry, here.'}
 {'role': 'SYS', 'utterance': "Thanks. Lovely day. Pity I'm on duty."}
 {'role': 'USR', 'utterance': "I'll stand in with you if you like. I'Ve got nothing else to do."}]
{'role': 'SYS', 'utterance': "Oh, no. I couldn't possibly."}