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:     Do you need a ticket ?  
 Person2:  Surely , I do . It's hard to come by , isn't it ?  
 Person1:      Yes , it is .  
 Person2:  Can you get it ?  
 Person1:      You can be assured of it . 

1