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 . I bought this just now and here's a receipt . I'm afraid I was short-changed . Could you look into it ?  Oh , really ? Just a moment ... You paid with a ten-dollar note and I gave you ... Oh , sorry , here's a five left . I'm terribly sorry . 

Solution: No