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:     who are you writing a letter to ?  
 Person2:  I'm just responding to Sue's letter . Do you want to help ?  
 Person1:      OK . I guess I could add something . Tell them that I send my love .  
 Person2:  that's kind of boring . Don't you want to tell them anything else ?  
 Person1:      well , maybe you could tell them about my promotion .  
 Person2:  you've been promoted ? when did that happen ?  
 Person1:      just today . I guess I forgot to mention it .  
 Person2:  congratulations ! That's really exciting ! Let's get out a bottle of wine to celebrate !  
 Person1:      shouldn't we finish writing this letter first ?  
 Person2:  ah . That can wait . Your promotion is the best news I've heard in a long time !  
 Person1:      it is good news , but it looked like you were almost finished . We might as well just sign off .  
 Person2:  ok , you're right . I'll just tell them how round I am of you for getting a promotion and then I'll thank Sue for her kind letter .  
 Person1:      I guess you can write that I'm looking forward to seeing them in June .  
 Person2:  that's thoughtful of you .  
 Person1:      and also thank them from the bottom of my heart for the Christmas package they sent us .  
 Person2:  that's right ! I almost forgot about that .  
 Person1:      what would you do without me ?  
 Person2:  we do balance each other out well . I guess we were really made for each other ! 

1