[{'role': 'USR', 'utterance': 'There are so many record players here. That is hard to choose.'}
 {'role': 'SYS', 'utterance': 'Look at this one. It has a radio and cassette player and built in speakers.'}
 {'role': 'USR', 'utterance': "I'd rather get one with separated speakers. They give a clear sound."}
 {'role': 'SYS', 'utterance': "Yes, but we shouldn't get any thing too big. Remember it has to fit in with our living room furniture."}
 {'role': 'USR', 'utterance': "That's right. Now this one looks alright? It's a detached or do you prefer this one? It's Sony."}]
{'role': 'SYS', 'utterance': "Let's have the salesmen for a demonstration."}