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 ?  
 Person2:  I am returning these books .  
 Person1:      What did you do to this book ?  
 Person2:  I accidentally ripped the cover .  
 Person1:      You will need to pay for the damage .  
 Person2:  How much do I need to pay ?  
 Person1:      I ’ m going to need $ 5.00 .  
 Person2:  That ’ s not too expensive .  
 Person1:      It isn ’ t .  
 Person2:  Here ’ s the $ 5.00 .  
 Person1:      Thank you .  
 Person2:  No problem . Have a good one . 

1