[{'role': 'USR', 'utterance': "I'm so hungry. Shall we go eat now, Rick?"}
 {'role': 'SYS', 'utterance': 'sure. Where do you want to go? Are you in the mood for anything in particular?'}
 {'role': 'USR', 'utterance': "how about some dumplings? I just can't get enough of them."}
 {'role': 'SYS', 'utterance': "dumplings again? ! Oh, Amy, let's try something new!"}
 {'role': 'USR', 'utterance': 'well, what do you have in mind?'}
 {'role': 'SYS', 'utterance': 'how about the Mongolian hot pot?'}
 {'role': 'USR', 'utterance': "oh, it's too spicy for me. Don't you remember last time when I tasted the lamb? It was so spicy my eyes teared up!"}]
{'role': 'SYS', 'utterance': 'maybe we can try Yuanyang pot this time. You can choose the non-spicy soup base.'}