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:     Do you have shoes here ?  
 Person2:  Yes . What do you want to buy ?  
 Person1:      I want to buy a pair of shoes for an interview .  
 Person2:  What size do you wear ?  
 Person1:      My feet is size 37 . 

1