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:     How may I help you ?  
 Person2:  I need to return these books .  
 Person1:      Give them here .  
 Person2:  Here they are .  
 Person1:      It appears these books are two weeks late .  
 Person2:  I forgot they were due .  
 Person1:      You do realize you are going to have to pay late fees , right ?  
 Person2:  How much is the late fee ?  
 Person1:      The late fee is 25 cents a day .  
 Person2:  So I have to pay 25 cents for each day the books are late ?  
 Person1:      It ’ s 25 cents for each book .  
 Person2:  That ’ s a lot of money . 

1