Definition: You are given a conversation between two people. 'Person1:' and 'Person2:' are used to separate their respective dialogues. You are required to assign a label 'formal' if there is an absence of emotion and a presence of questions anywhere within the conversation. If such pattern is not found assign the label 'informal'.
Input:  Person1:       You always stick to your PC recently . Are you still fascinated by chatting on line ?  
 Person2:For me , the times of chatting online has gone .  
 Person1:        What the hell are you doing now ?  
 Person2:I opened my blog today . In order to have more visitors , I have to land on others ' blogs and leave my messages for their blogs .  
 Person1:        What's new with you ?  
 Person2:Do you still remember Justin ?  
 Person1:        Of course , he was our monitor in college . How is him now ?  
 Person2:He seemed to be dumped by his girlfriend . I found his blogs were a little sad .  
 Person1:        Let me see . What a moving poem ! 

formal