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:     May I help you ?  
 Person2:  I would like to return this book .  
 Person1:      May I do anything else for you ?  
 Person2:  I would also like to check out these books .  
 Person1:      Will that be all ?  
 Person2:  That ’ s it .  
 Person1:      Do you have your library card ?  
 Person2:  Oh , yeah . Here you go .  
 Person1:      Will that be all for today ?  
 Person2:  That ’ ll be all .  
 Person1:      These books are due back in two weeks .  
 Person2:  Thanks . Have a good one . 

1