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:     Hello . I'm answering the ad in the paper about your car.And I wonder if it is still available ?  
 Person2:  Yes , it's still available .  
 Person1:      Good.Can you give me some information about it ... uh .. mileage and the tires and things like that ?  
 Person2:  Well , it has got low mileage.The tires are in perfect condition and it's in excellent shape . 

1