Detailed Instructions: If the emotion of happiness is present in the one of the dialogues of the conversation, then output Yes otherwise output No
See one example below:
Problem: 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
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: Hello , Elizabeth . How are you ?  Fine , thanks .  Are you sure you're all right ? You look a bit worried today . Is anything wrong ?  Well , yes , there is something wrong actually . Perhaps you can give me some advice .  Of course , if I can .  Well , last night when I returned from the theatre , I found that I'd lost my wallet .  Oh dear ! That's terrible ! What was in your wallet ?  Well , some money . of course , my visa , all my identity cards and some photos .  Well , if were you , I'd go to the police station straight away and report it .  Yes , I've already done that , and they said they'd look for it . But we're leaving soon and I need my visa and identity cards badly .  Oh dear ! What a pity ! Are you sure you lost the wallet in the theatre ?  Yes , quite sure .  I think you should put an advertisement in the China Daily , saying when and where you lost it .  But that takes too long .  Wait a minute ! My uncle lives in Beijing and he lives very close to the theatre . I'll telephone him and ask him to go there to inquire about it . You'd better have breakfast now and I'll meet you later . 
Solution:
No