Part 1. Definition
If the emotion of happiness is present in the one of the dialogues of the conversation, then output Yes otherwise output No
Part 2. 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 . 
Answer: Yes
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.
Part 3. Exercise
I have a problem .  What's the problem ?  My mattress was supposed to be delivered today .  Is there a problem ?  The delivery people showed up four hours late .  I apologize for their tardiness .  I was late for work because of them .  Again , I do apologize for the inconvenience .  I want my money back for the delivery .  Seeing as they were late , that won't be a problem .  It shouldn't be a problem .  I'm going to refund your money right now . 
Answer:
No