[{'role': 'USR', 'utterance': 'I was just about to go to bed when the telephone rang last night.'}
 {'role': 'SYS', 'utterance': 'Who was it?'}
 {'role': 'USR', 'utterance': 'Kate. She said she was too excited to go to sleep.'}
 {'role': 'SYS', 'utterance': 'She never cares about others.'}
 {'role': 'USR', 'utterance': "It's true. Guess what we were talking about last night."}]
{'role': 'SYS', 'utterance': 'Her new boyfriend, right?'}