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:     Are you being served , madam ? 
 Person2:  No . Um , do you carry any padded coat ? 
 Person1:      Yes , what size is in your mind ? 
 Person2:  Small size . 
 Person1:      Any particular brand ? 
 Person2:  Whatever . You know , I ’ m thinking of a gift for my mother . It ’ s her 60 birthday next Friday . Could you give me some advice ? You are the expert . 
 Person1:      How about this one ? It ’ s the latest design , simple but elegant . 
 Person2:  Looks nice . How much do you charge ? 
 Person1:      $ 100 . 
 Person2:  That ’ s sheer robbery . I ’ m sure you can do better than that . 
 Person1:      How much would you say ? 
 Person2:  $ 80 . 

1