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:     Good afternoon.can I be of any assistance to you ?  
 Person2:  Yes , I am looking for a suit .  
 Person1:      Here are the suits . Which one would you like ?  
 Person2:  Can I have a black one over there ? 

1