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:     Hi , sorry to have kept you waiting .  
 Person2:  That's all right .  
 Person1:      How are you ?  
 Person2:  Fine , and you ? 

0