Definition: You are given a conversation between two people. 'Person1:' and 'Person2:' are used to separate their respective dialogues. If the conversation begins with a question, label it '1' otherwise '0'.
Input:  Person1:     Are you having a good time ? 
 Person2:  Oh , yes . It's a great party . There are some people I don't know , though . 
 Person1:      Really ? Come on , I'll introduce them to you . 
 Person2:  That would be great . 

1