[{'role': 'USR', 'utterance': 'Hi! Wang Mei. Come and have a look at my new dress.'}
 {'role': 'SYS', 'utterance': 'Oh! What a beautiful dress! It fits you so well. You look so charming in the dress.'}
 {'role': 'USR', 'utterance': 'Thank you for saying so.'}
 {'role': 'SYS', 'utterance': 'Where did you buy it?'}
 {'role': 'USR', 'utterance': 'I bought it in a store near my school.'}]
{'role': 'SYS', 'utterance': 'How much is it?'}