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:       How's it going ? 
 Person2:I'm in a good mood today , actually . How about you ? 
 Person1:        To be honest , I'm a bit fed up . 
 Person2:What's wrong ? 
 Person1:        There's a girl in my company that I really like but I always get shy when she is around . 
 Person2:I see ! Do you want to ask her out ? 
 Person1:        Sure , but how ? 
 Person2:You can ask her out for drinks after work . 
 Person1:        But for what reasons ? She doesn't even know who I am . 
 Person2:Then you've got a lot of work to do . You need to get her to notice you first . 
 Person1:        Easier said than done . 
 Person2:You can start by meeting her at the bus stop and saying ' hello ' to her . 
 Person1:        But I always get tongue-tied when I see her . 
 Person2:That's something you need to overcome . Men should make the first move as most girls prefer being chased . 
 Person1:        I see . I'll try . 
 Person2:Good luck ! 

informal