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:     I'm sorry , I'm engaged at 2 p . m . 
 Person2:  If you don't mind , let's make it a little later.What about three or four ? 
 Person1:      Sorry , the whole afternoon is filled up here.Will tomorrow do ? 
 Person2:  All right . 

0