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
Oh , the bus is gone .  Pity we didn't catch it .  I'm afraid we have to wait for the next bus .  We have to wait six more minutes ! 
Answer:
No