[{'role': 'USR', 'utterance': 'Are you an art aficionado?'}
 {'role': 'SYS', 'utterance': "Not really. I like going to an art exhibition once or twice a year. I hardly know anything about art or sculpture. You are a true art lover, aren't you?"}
 {'role': 'USR', 'utterance': 'I love going to art galleries, particularly when one is holding an exhibition of abstract art.'}
 {'role': 'SYS', 'utterance': "I never understand the meaning of those painting. They are too abstract for me. I didn't pay much attention in art class at school."}
 {'role': 'USR', 'utterance': "Art isn't for everyone. I'm going to an exhibition tomorrow at the national gallery. It's an exhibition of greek and roman sculpture."}]
{'role': 'SYS', 'utterance': "I like sculpture, especially that from ancient rome or Greece. What time are you thinking of going? I'd love to go with you."}