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:     Mark , you've been coming home late these days . What are you busy doing ?  
 Person2:  Nothing important . I've been working overtime lately .  
 Person1:      How many hours do you work each day now ?  
 Person2:  12 hours , including 5 hours overtime .  
 Person1:      That's tough indeed ! Do you think your health can afford ?  
 Person2:  I don't care . I need money .  
 Person1:      Surely you'll be paid extra for overtime , but do you think it's really worth ?  
 Person2:  Yes , I think so . When I work overtime I'm paid time and a half .  
 Person1:      Oh , yes . Money comes faster in that way than otherwise .  
 Person2:  But jobs with a lot of overtime are quite limited . Employers usually don't like to pay for overtime if they can manage .  
 Person1:      That's true . 

1