[{'role': 'USR', 'utterance': 'What is your favorite kind of music?'}
 {'role': 'SYS', 'utterance': 'I listen to various types of music.'}
 {'role': 'USR', 'utterance': 'What genres?'}
 {'role': 'SYS', 'utterance': 'I enjoy listening to both Rock and R & B.'}
 {'role': 'USR', 'utterance': 'What interests you in that type of music?'}]
{'role': 'SYS', 'utterance': 'I enjoy the different types of instruments that they use.'}