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 busy next Saturday ?  
 Person2:  No , why ?  
 Person1:      I need to get a costume for a fancy dress party , and I reply don't know what to get . Will you come shopping with me ?  
 Person2:  Sure I like shopping . Who is organizing the party ?  
 Person1:      One of the girls in my office .  
 Person2:  What's the occasion ?  
 Person1:      There is no specie occasion . She just likes to organize parties from time to time . This time it is a country theme .  
 Person2:  That's easy , how about a cowgirl ? Oh I know even better , a Canadian Mountie .  
 Person1:      Well where am I going to get that sort of costume ?  
 Person2:  Leave it to me . I know exactly where to find it .  
 Person1:      Oh good .  
 Person2:  Excellent , come over at ten o'clock and we will start at the shopping center , the one around the corner from my house . They have just the shop we need . 

1