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 couldn ’ t find the book I was looking for .  
 Person1:      Have you checked the database ?  
 Person2:  I checked .  
 Person1:      Was it on the shelf ?  
 Person2:  It should have been , but it wasn ’ t .  
 Person1:      Maybe someone took it .  
 Person2:  Will you be getting another copy anytime soon ?  
 Person1:      I ’ m sure we will .  
 Person2:  Would you be able to reserve it for me ?  
 Person1:      I sure will .  
 Person2:  Thank you very much . 

1