If the emotion of happiness is present in the one of the dialogues of the conversation, then output Yes otherwise output No
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Question: What can I do for you ?  Can I have a look at your handworks ?  All right . This way , please .  You have quite a range , haven't you ?  Yes , sir .  They are all produced in China , aren't they ?  Yes , they are all distinctive Chinese .  Could you please select me one ?  How do you like this one ? It's very beautiful .  Oh , I like it very much . How much does it cost ?  350 yuan .  OK . I'll take it . 

Answer: Yes


Question: Excuse me , miss . I don't think we need the MP4 any more . We would like to refund it .  May I see your receipt ?  Here you are .  I am sorry , sir . You bought it 2 weeks ago , and you can only refund it in one week . 

Answer: No


Question: Would you like a piece of birthday cake ?  No , thanks , I'll pass . It looks very tempting though .  I thought strawberry cake with cream cheese frosting was your favorite ?  It is . I'm on a diet and strawberry cream cheese cake is not on it .  A diet ? What for ? You are in great shape .  I went to the doctor the other day . My cholesterol is up .  Oooo . This sounds serious .  Not too serious . But he gave me a strict diet to help bring it down . 

Answer:
No


