[{'role': 'USR', 'utterance': 'I like this table, it looks very strong. Do you think it will look good in your new house?'}
 {'role': 'SYS', 'utterance': "I don't think so. My new house is by the beach. I want something that looks like it belongs by the beach."}
 {'role': 'USR', 'utterance': 'What about this one? It looks good.'}
 {'role': 'SYS', 'utterance': "It's too dark. I want something light, like the color of sand."}
 {'role': 'USR', 'utterance': "You're very picky. This one?"}]
{'role': 'SYS', 'utterance': "No, it looks too weak, and it's way too dark."}