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:     May I have two tickets for Tiny Times ?  
 Person2:  OK . What time ?  
 Person1:      2:30 , please .  
 Person2:  It's 60 yuan , please .  
 Person1:      Sorry , we have student cards . We can get discounts with these , can't we ?  
 Person2:  Sure . That'll be 40 yuan , please .  
 Person1:      Here is 50 yuan . 

0