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:     How can I help you ?  
 Person2:  I'd like to buy some perfume for my girlfriend .  
 Person1:      Do you know what kind of scent she usually wears ?  
 Person2:  She usually doesn't wear anything but a few drops of Chanel No . 5 . But I'd like to buy her a new Fragrance .  
 Person1:      OK , here are some of our most popular perfumes .  
 Person2:  Which one would you recommend ?  
 Person1:      Personally , I quite like the new perfume from Clinique . It's a subtle flowery scent . What do you think ?  
 Person2:  That smells great . I'll take one bottle , please .  
 Person1:      Would you like to buy any other cosmetics for your girlfriend ? We have a full range of products from cosmetics to skin cleansers and moisturizers .  
 Person2:  It's OK . She normally just wears a little foundation and some loose powder , and I don't know what shade to buy .  
 Person1:      How about some lipstick ? Every woman needs a nice tube of lipstick .  
 Person2:  She doesn't usually wear lipstick . She thinks it makes her nose look too big .  
 Person1:      How about some mascara ? That will make her eyes look bigger .  
 Person2:  No , thank you . She has big enough eyes as it is .  
 Person1:      I know what she would like-some whitening cream .  
 Person2:  No thanks . Western women usually try to make their skin darker , not lighter .  
 Person1:      Will that be all then ?  
 Person2:  That will be all . You've been very helpful , thanks . 

1