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:     What can I do for you today ?  
 Person2:  I need to return a book .  
 Person1:      Can I do anything else for you ?  
 Person2:  I want to check these books out .  
 Person1:      Is that all ?  
 Person2:  That ’ s all .  
 Person1:      May I see your library card , please ?  
 Person2:  It ’ s right here .  
 Person1:      Will that be all for today ?  
 Person2:  Yes . That ’ s it .  
 Person1:      These are due back in two weeks .  
 Person2:  All right . Have a good night . 

1