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:     Joe , how are you doing ?  
 Person2:  Pretty good . Mary , I was wondering if you would like to come to a party on Friday night ?  
 Person1:      I am free that night , and a party sounds good .  
 Person2:  Fine . It will be at my house . Do you know how to get there ?  
 Person1:      I kind of know where you live , but could you e-mail me your address ?  
 Person2:  I can do that . Do you have anyone that you would like to bring with you to the party ?  
 Person1:      I would really like to bring my friend Jake , if that would be OK .  
 Person2:  Oh yeah , I remember Jake . That would be fine .  
 Person1:      Would you like some help with the food ?  
 Person2:  Just bring along whatever it is that you and Jake would like to drink . 

1