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 was looking for a book , but I couldn ’ t find it .  
 Person1:      Did you check our database to see if it was on the shelf ?  
 Person2:  I already did .  
 Person1:      Is it on the shelf ?  
 Person2:  I didn ’ t see it .  
 Person1:      Apparently somebody took that book out of the library .  
 Person2:  Will you ever get another copy ?  
 Person1:      We will definitely be getting another .  
 Person2:  Could you please reserve it for me ?  
 Person1:      That won ’ t be a problem .  
 Person2:  Thanks . I really appreciate that . 

1