If the emotion of happiness is present in the one of the dialogues of the conversation, then output Yes otherwise output No

Is there anything I can do for you ? Excuse me , can I change my order ? I am afraid I don't have so much time to enjoy my dinner . I am sorry , sir . Your fish will be ready in five minutes so you can't change it . That's all right .
No

Excuse me , but is this dress on sale ? The dress was on sale yesterday . Are you sure ? I'd be happy to pay the sale price today . I'm so sorry , but rules are rules . OK , I'll just check out a few other stores . I'm sorry I couldn't help you .
No

Would you show me some table-cloths ? Certainly . ( Take a table-cloth to her ) How much is it ? A table-cloth of this size and style is 15 Yuan . That ' s reasonable . If you take good care of it , it will last you quite a number of years . Really ? I ' ll take it then .
Yes