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:     Excuse me . What time does the next bus for Boston leave ?  
 Person2:  It leaves at 8: 30 .  
 Person1:      I see . Are there any seats available ?  
 Person2:  Just a moment , please . Yes , you can have a seat .  
 Person1:      Good . How much is a one-way ticket ?  
 Person2:  It's 38 dollars .  
 Person1:      All right . Here's 40 dollars .  
 Person2:  Here's your ticket and change .  
 Person1:      Thank you . Which gate should I go to for the bus ?  
 Person2:  Go to gate number 2 , please .  
 Person1:      Thank you very much .  
 Person2:  Don't mention it . 

1