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:     It's getting late , and I have to go now .  
 Person2:  We're sorry you have to leave .  
 Person1:      Please excuse me , won't you ?  
 Person2:  Certainly . Come back soon . 

0