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: Can you give me more details on what is included in the package ?  Sure . The coach leaves at 6:30 a . m . , in front of our office . The drive takes eight hours , with two stops to see some sights .  What about the hotel accommodations ?  You'll be staying at Holiday Inn . It's a three-star hotel with two restaurants and a swimming pool .  Great . What types of things will we do at Lushun Falls ?  The second day you take a four-hour city tour . In the afternoon you go on the famous boat cruise under the falls . 
A:
Yes