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:     Good afternoon , may I help you ?  
 Person2:  I have booked a table for 3 this evening . I would like to cancel it .  
 Person1:      May I have your name , please ?  
 Person2:  Sure . Brown and we have reserved a table next to the door .  
 Person1:      Yes , I see . We will cancel your order . 

1