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:     May I help you ? 
 Person2:  This dress is beautiful . May I try it on ? 
 Person1:      I'm afraid you can't . 
 Person2:  What is the material of this dress ? 
 Person1:      It's 100 % cotton . 
 Person2:  That's good . Can you give me a reduction ? 
 Person1:      It's already reduced 20 % . 
 Person2:  Do you have any cheaper ones ? 
 Person1:      Yes . Please come this way . 

1