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.
Problem: Person1:      We are going to the concert this evening . Will you join us ?  
 Person2:  I'm very sorry I can't .  
 Person1:       Why not ?  
 Person2:  I've been snowed under with work since my boss was away on business . 
Solution:
0