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 afternoon , sales department.May I help you ?  
 Person2:  Could I speak to Mr Wood , please ?  
 Person1:      I'll see a piece available , who should I say is calling , please ?  
 Person2:  John eng  
 Person1:      Hold the line , please.Mr Wood is in the meeting with managing director at the moment I afraid.Can I help you ?  
 Person2:  Well , I want to discuss with them the new control we said last week .  
 Person1:      I don't think the meet will go on much longer , should I ask him to call you when he is free .  
 Person2:  Yes , that will be easiest .  
 Person1:      Could I have your name again , please ?  
 Person2:  Yes , It's John eng .  
 Person1:      And the number ?  
 Person2:  01088256798  
 Person1:      Ok , you will be hearing from Mr Wood later in the afternoon then , Mr John .  
 Person2:  thank you for help.good bye .  
 Person1:      You are welcome , goodbye . 

1