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:     Hey ! What's up ? 
 Person2:  Hi , John ! I haven't seen you for ages . 
 Person1:      Yeah , I've been out of town . 
 Person2:  So how have you been ? 
 Person1:      Great ! Work is really busy now , but it's fun . 

1