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:     What ?  
 Person2:  What happened with that guy at the cafe ?  
 Person1:      nothing  
 Person2:  But you ’ re crazy about him ?  
 Person1:      Yes , I am .  
 Person2:  Why don ’ t you run off with him ? What are you waiting for ?  
 Person1:      I don ’ t actually know him .  
 Person2:  Really ?  
 Person1:      I only know him through the ... you are not gonna believe this .  
 Person2:  Oh , let me guess . Through the internet ?  
 Person1:      Yes .  
 Person2:  Hmm . You ’ Ve got mail . 

1