Teacher: If the emotion of happiness is present in the one of the dialogues of the conversation, then output Yes otherwise output No
Teacher: Now, understand the problem? If you are still confused, see the following 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 . 
Solution: Yes
Reason: 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.

Now, solve this instance: Is there anything I can do for you ?  Yes . I am looking for a pair of gloves .  What about this one ? It's the latest .  Excuse me , but I want a pair of mittens .  I am sorry , it's out of stock right now . 
Student:
No