[{'role': 'USR', 'utterance': 'How much is the admission fee for a student?'}
 {'role': 'SYS', 'utterance': 'We offer a reduction of 50 % and comes to $ 10.'}
 {'role': 'USR', 'utterance': 'Here you are. Where is the museum guide?'}
 {'role': 'SYS', 'utterance': 'Well, here you are.'}
 {'role': 'USR', 'utterance': 'Is it free?'}]
{'role': 'SYS', 'utterance': 'Of course.'}