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:     Can we have two tickets for seven thirty ? 
 Person2:  Yes , and would you like to have seats in the front or at the back ? 
 Person1:      In the front , please . 
 Person2:  That's 35 yuan each . 
 Person1:      Thank you . And what's on tomorrow ? 
 Person2:  Tarzan . 
 Person1:      Can we get tickets now ? 
 Person2:  I am afraid not . Tomorrow is premiere . 

0