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:       Mom , why do chinese people like to touch my head ? sometimes they even touch my cheeks .  
 Person2:That is a part of chinese culture , if they think you are a lovely child , they touch your head and say , how cute you are .  
 Person1:        But i donor like it , not a bit , i am not a pet , i am a girl .  
 Person2:Well , you get used to it , different countries have different manners .  
 Person1:        But i do not like anyone touch my head .  
 Person2:They are just been in friendly , when you are in Roman , do as the Romans do , that means you need to adapt to your enviroment .  
 Person1:        What if everybody in the wheres goes crazy ?  
 Person2:Then you might need to pretend to be a little crazy .  
 Person1:        Does this mean that if i might want those new European bitches , i am supposed to wonder run reget ?  
 Person2:Do you think it is a ~ got give your brain , use it if you really cannot accept it people touch your head , keep distance from them , why not just wear your big flyby hat and ~ is anyone get close to you .  
 Person1:        That is my work , i will try it . 

formal