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:     Hi , United Airlines ? This is Elizabeth parks calling . I have a reservation on the 2:30 p . m . flight to Shanghai this afternoon .  
 Person2:  Yes , Miss Parks ? How may I help you ?  
 Person1:      Well , I ’ d like to reschedule my flight for the tomorrow morning one at 9:05 . Is that possible ?  
 Person2:  I ’ m very sorry , Miss Parks , but the 9:05 flight is completely booked . I can put you on a waiting list if you would like . 

0