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 about you , Emily ? Have you dated anyone recently ?  
 Person2:  I started to date someone recently , but it didn't work out .  
 Person1:      That's too bad . What happened ?  
 Person2:  Well ... that's a long story . 

1