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 , sir . May I help you ?  
 Person2:  Yes , I'd like a cheeseburger and a large order of French fries .  
 Person1:      Would you like anything to drink with that ?  
 Person2:  Yes , a medium Coke .  
 Person1:      Will that be all ?  
 Person2:  Yes .  
 Person1:      For here or to go ?  
 Person2:  To go , please . ( The attendant hands the customer his order . )  
 Person1:      That'll be $ 4.25 ... ( The customer gives her a 5 dollar bill . ) ... out of five . Here is your change , sir . Have a nice day . 

1