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:     Did you see the fashion awards last night ?  
 Person2:  I sat through about half of it but they lost me after that .  
 Person1:      Not interested ?  
 Person2:  Not really , to be honest . Some of what they call fashion looks terrible to me .  
 Person1:      But they are showing what will be all the rage next year .  
 Person2:  All the rage with whom ? I never see anyone wearing these designs on the street .  
 Person1:      Did you know that fashion is cyclical ?  
 Person2:  What , it keeps coming back ?  
 Person1:      Precisely ! For example , Flares were popular for a while , then went out of fashion . Now we can start to see them coming back in again .  
 Person2:  Flares ?  
 Person1:      They're also known as bell-bottoms . They are a type of trousers .  
 Person2:  It's too complicated . I'll just stick to the plain clothes .  
 Person1:      That's fine , but then you'll always look plain . 

1