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 , John . How are you ?  
 Person2:  I'm fine , thanks . And you ?  
 Person1:      Very well , thanks . Nice to see you again . I haven't seen you for a long time . What have you been doing lately ?  
 Person2:  Oh , nothing much really . And how is everything with you ?  
 Person1:      Fine , thanks . I've been busy lately .  
 Person2:  What have you been doing ?  
 Person1:      I've been studying for my exams . My school exams will begin next month .  
 Person2:  Really ? Good luck for them .  
 Person1:      Thanks . And how are your parents ?  
 Person2:  They're both very well , thanks .  
 Person1:      Where are you going now ?  
 Person2:  I'm going to do some shopping . Why don't you come with me ?  
 Person1:      I can't . I have to meet someone .  
 Person2:  It's been nice talking to you .  
 Person1:      Good-bye . See you again sometime . 

1