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 morning , Textile Import & Export Company . 
 Person2:  Hello , this is Miller . I'm calling about the appointment with Mr . Zhang for this afternoon . Something's just come up , I'm afraid the appointment will have to be rescheduled , I'm very sorry about the change . 
 Person1:      That's all right . Maybe we can make another arrangement . 
 Person2:  You're very kind to say so . Thank you . Do you think tomorrow morning would suit him ? 
 Person1:      I'm afraid there's a bit of a problem . In fact , he's booked up the whole week except tomorrow afternoon . 
 Person2:  Tomorrow afternoon , Um ... you see , I've made an appointment with Mr . Comet for tomorrow afternoon . In order to meet Mr . Zhang , I have to cancel the appointment with Mr . Comet , I'm afraid . 
 Person1:      I'm terribly sorry , Mr Miller , but Mr . Zhang is really busy this week . 
 Person2:  I understand . When do you think I can come and see him tomorrow afternoon ? 
 Person1:      Please let me check . Tomorrow afternoon - Yes , he'll be free from 2:00 tomorrow afternoon . Do you think it's convenient for you ? 
 Person2:  Yes , that's quite all right for me . 

0