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:     Hello , Jack here . 
 Person2:  Hello , Jack . It ’ s Mary . What are you doing in your office ? 
 Person1:      I ’ m working . I often work late on Thursday . I ’ m busy this week . 
 Person2:  Would you like to come and have dinner with us on Friday ? 
 Person1:      Tomorrow ? No , I am afraid I won ’ t be able to . I ’ m going on business to Birmingham . 
 Person2:  What about Saturday ? 
 Person1:      Sorry , I never go out on Saturday evening . I always watch football on Saturday evening . 
 Person2:  Will you come round next Tuesday ? 
 Person1:      Next Tuesday ? Just a moment . It will be the twenty-first of May ? Oh , dear . Hum , I promised my aunt I ’ ll be at her birthday party . 
 Person2:  What do you say next Wednesday then ? 
 Person1:      Let me see . Yes , Mary . Let ’ s make it next Wednesday . 
 Person2:  Okay . Bye . 
 Person1:      Bye . 

0