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:     Excuse me , can I have a look at the green coat ?  
 Person2:  Certainly . Here you are . It's a new arrival .  
 Person1:      Yes , I like the style.Can I try this on ?  
 Person2:  Sure . The fitting room is in the corner . 

0