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:     What can I do for you , Ma'am ? 
 Person2:  I want to buy a cell phone for my daughter . 
 Person1:      How old is she ? 
 Person2:  She is 17 . It's for her birthday . 
 Person1:      We have a new-fashioned cell phone especially designed for young girls . The brand name is Nokia . 
 Person2:  Thanks , but I want to have a look at the Motorola's products . 
 Person1:      Sure . This is the one I will not hesitate to recommend . Its color and style is so attractive and also the quality is really reliable . 
 Person2:  Sounds perfect . I'll take the pink one . Can you pack it for me ? 
 Person1:      Sure . By the way , here are some free adornments . Would you like one ? 
 Person2:  Why not ? The Sweetheart pendant matches the cell phone well . I'd take this one . 
 Person1:      Have a seat over there . I'll pack it up for you right away . 
 Person2:  Thanks . 

1