[{'role': 'USR', 'utterance': "Excuse me, sir. Didn't you see the red light?"}
 {'role': 'SYS', 'utterance': 'Oh, I thought I could make a right turn on red here.'}
 {'role': 'USR', 'utterance': 'No, sir. The sign says No Turn on Red.'}
 {'role': 'SYS', 'utterance': "Oh, I guess I didn't see it."}
 {'role': 'USR', 'utterance': "I am sorry, sir. But may I see your driver's license and insurance policy, PLS? I have to give you a ticket."}]
{'role': 'SYS', 'utterance': 'Here they are.'}