[{'role': 'USR', 'utterance': 'Is there a problem, officer?'}
 {'role': 'SYS', 'utterance': 'I stopped you for driving through a red light.'}
 {'role': 'USR', 'utterance': 'Did I really?'}
 {'role': 'SYS', 'utterance': "You didn't know?"}
 {'role': 'USR', 'utterance': 'I had no idea that I ran it.'}
 {'role': 'SYS', 'utterance': "Don't you know that yellow means slow down?"}
 {'role': 'USR', 'utterance': 'Yes, madam.'}]
{'role': 'SYS', 'utterance': "Why'd you speed up instead?"}