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:     Mr.Martin , we're on arrival .  
 Person2:  It's nice of you to see my off at the airport . Thank you very much .  
 Person1:      We'll miss you . I hope we'll keep in touch .  
 Person2:  Sure . You've given a great help to me in the past days .  
 Person1:      It's my pleasure . We hope you'll visit Beijing again .  
 Person2:  Certainly . I'll be glad to .  
 Person1:      It's almost time to get aboard .  
 Person2:  Yes , we should go . Thank you very much . Goodbye !  
 Person1:      Bye bye ! Have a pleasant journey ! 

0