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:     Oh , boy , I hate to say this , but I really have to leave now .  
 Person2:  That ’ s all right . I understand .  
 Person1:      I ’ m so sorry .  
 Person2:  That ’ s ok . Don ’ t be sorry . We ’ ll talk later . 

0