If the emotion of happiness is present in the one of the dialogues of the conversation, then output Yes otherwise output No
One example is below.
Q: 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 . 
A: Yes
Rationale: 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.
Q: First you add the washing powder then you add the clothes .  I take it you've done this before ?  Yes , for the last 20 years .  Good . 
A:
Yes