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 evening , John .  
 Person2:  Good evening , Mary .  
 Person1:      How are you doing ?  
 Person2:  I'm doing fine , thanks.What ' s new with you ?  
 Person1:      Nothing special .  
 Person2:  I'm wondering whether you could come over for a pizza sometime next week ?  
 Person1:      Sounds good.Sorry , here comes my bus.You call me , or I'll call you to make a date .  
 Person2:  I'll call you .  
 Person1:      All right.Gotta go , bye , keep in touch .  
 Person2:  Have a great day , take care , bye . 

0