[{'role': 'USR', 'utterance': 'Passport, please!'}
 {'role': 'SYS', 'utterance': 'Here you are.'}
 {'role': 'USR', 'utterance': 'Are you Chinese?'}
 {'role': 'SYS', 'utterance': 'Yes, I am.'}
 {'role': 'USR', 'utterance': 'Where in China are you from?'}
 {'role': 'SYS', 'utterance': 'Fujisan Province.'}
 {'role': 'USR', 'utterance': 'There are a lot of people from China visiting right now.'}]
{'role': 'SYS', 'utterance': "It's not surprising. Our school year just ended, and a lot of Chinese are on vacation."}