Detailed Instructions: You are given a conversation between two people. 'Person1:' and 'Person2:' are used to separate their respective dialogues. Your task is to classify the conversation either convey 'No emotion' or 'Happiness' by providing '1' and '0', respectively.
Q: Person1: Look ! Someone is celebrating his birthday .
Person2: This must be his 21st birthday . No doubt about it .
Person1: Why ? Do you know that guy ?
Person2: No . Well , in America , 21 is the age when you're allowed to drink . So , many guys celebrate it in bars .
Person1: That's interesting . But it would be really expensive , I suppose . Just think about all the drinks .
Person2: No . If it's your birthday , then you don't need to pay a cent . Just blow out the candles and open the gifts . That makes the birthday a special day . Your friends will take care of everything .
Person1: Wow . That's wonderful .
Person2: What about in China ? What'd you do to celebrate your birthday ?
Person1: Nowadays , it's no difference from America . But in old times , we have traditional ways to celebrate it .
A:
1