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:     Can I help you , Madam ?  
 Person2:  Yes . I'd like to buy a sweater for my husband . Which style is the latest ?  
 Person1:      These are all the latest fashion . How do you like this white turtleneck one ?  
 Person2:  I like this style . But do you have any other colors ? I feel that this color doesn't suit his complexion .  
 Person1:      We also have it in grey .  
 Person2:  Great ! I will take it . And could you suggest a pair of trousers to match this sweater ?  
 Person1:      It's my pleasure . I think this pair of jeans will suit the sweater well .  
 Person2:  Let me see . Yes , they are perfectly matched ! 

1