If the emotion of happiness is present in the one of the dialogues of the conversation, then output Yes otherwise output No
Example: So Dick , how about getting some coffee for tonight ?  Coffee ? I don ’ t honestly like that kind of stuff .  Come on , you can at least try a little , besides your cigarette .  What ’ s wrong with that ? Cigarette is the thing I go crazy for .  Not for me , Dick . 
Example solution: Yes
Example explanation: Here the first sentence indicates the soft tone and how exciting the speaker is for drinking coffee and it suggests overall happy tone and the output is yes. So this is a positive example.

Problem: Excuse me , could you tell me how much is the lipstick ?  It costs only 25 yuan .  Oh , it's too expensive . Can't you make it any cheaper ?  The price is reasonable because the quality is super .  But the price is too high .  How much would you like it to be , then ?  What about 15 yuan ?  Let's meet half way , 20 yuan , OK ?  All right , I'll take it .  I think you've got a real bargain .  Thank you . 

Solution: Yes