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:     I haven't seen your father in like 5 years . How is he doing ? 
 Person2:  He's not doing too well . 
 Person1:      Why ? What's wrong ? 
 Person2:  About a year ago , he started feeling weak all the time . 
 Person1:      Is it due to old age or is he sick . 
 Person2:  Maybe a little of both . The doctor's can't point out anything specifically . I think it is because he didn't take care of himself during his youth . 
 Person1:      That makes sense . It's important to take care of your health early in life . 
 Person2:  That's what my father tells me almost everyday . 
 Person1:      Well , I hope he starts feeling better . Say hi to him for me . 
 Person2:  Thanks . I'll let him know . 

1