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 ready to go the concert ?  
 Person2:  yes . Should we go there by bus so we aren't late ?  
 Person1:      actually , why don't we go there by bike ? We could get stuck in traffic if we travel by bus in such hour .  
 Person2:  that's true . Cycling is good for our environment , too . Let me just get my helmet then .  
 Person1:      is your helmet comfortable ?  
 Person2:  not really , but I liked the design , so I got it .  
 Person1:      maybe you should think about getting a round helmet ; they're better .  
 Person2:  I'll think about it .  
 Person1:      is that your new bicycle ?  
 Person2:  yes , my father gave it to me for my birthday . Do you like it ?  
 Person1:      it's the newest 10 speed cycling mountain bike . These are really expensive !  
 Person2:  nothing but the best from my dad . I like everything about it except for the brakes . They are a bit sticky .  
 Person1:      I can fix those for you . Is there anything else wrong with it ?  
 Person2:  well , my saddle is too low for me . Do you know how to change the height ?  
 Person1:      that's easy . It's important to have the saddle high enough so that your legs can extend fully when you are on your bicycle .  
 Person2:  is that why my knees have felt sore after every time I've ridden my bike ?  
 Person1:      it's possible . Give me a minute and I can fix these for you and then we can go . 

1