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:     Yes , ma'ma . May I help you with your bags ? 
 Person2:  Oh , yes , if you like.The large one goes to Washington.The other one I will take with me . All right ? 
 Person1:      Flight 36 to Washington.It ' ll be on the plane for you . 
 Person2:  Oh , thank you . Thank you very much . 

1