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:     I believe that you called me ?  
 Person2:  Oh , hi . Thanks for getting back to me quickly .  
 Person1:      Why did you call me ?  
 Person2:  I was calling about your son .  
 Person1:      Did he do something wrong ?  
 Person2:  Your son was acting up in class .  
 Person1:      What do you mean ?  
 Person2:  He was talking and causing a disturbance during class .  
 Person1:      That's really not like him .  
 Person2:  If you could just talk to him , I would greatly appreciate it .  
 Person1:      I apologize , and I'll make sure he doesn't do that again .  
 Person2:  Don't worry about it , but thank you very much . 

1