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:     Jenny , I was wondering if you , um ... are you busy this Friday ? 
 Person2:  Yes , Friday I have a class right after work . 
 Person1:      Oh . What about Saturday ? Are you free then ? 
 Person2:  Saturday my parents are coming to town . What's up ? 
 Person1:      What about tonight ? Do you have plans tonight ? 
 Person2:  No . Did you want to go do something ? 
 Person1:      Yes ! Yes ! I want to take you to dinner . 
 Person2:  Oh ! That sounds great ! How about six o'clock ? 

1