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: May I help you ?  I bought the MP4 in your store a week before , but it doesn't work today .  Have you brought your receipt ?  Yes , here you are .  I am sorry , we will change yours for a new one . 

Solution: No