[{'role': 'USR', 'utterance': 'Can anyone tell me where I can buy the ingredients to make Chinese food?'}
 {'role': 'SYS', 'utterance': "There is a supermarket in Kensington High Street. I'll come and give you a hand."}
 {'role': 'USR', 'utterance': 'That is good of you. Here, take one of these trolleys. What do you want exactly?'}
 {'role': 'SYS', 'utterance': "I'm after things to stuff dumplings with, like Chinese cabbage"}
 {'role': 'USR', 'utterance': 'The fruit and vegetables are over there.'}]
{'role': 'SYS', 'utterance': "Pork. Where's the meat counter?"}