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:       Hey . Why did you take that money ? You are such a cheater ! I should send you to jail !  
 Person2:I am not cheating . When you pass go , you collect $ 200 , Everyone knows that !  
 Person1:        Well you can ’ t just take the money . You have to ask the bank for money . And I ’ m the banker .  
 Person2:Banker ?  
 Person1:        Yes ...  
 Person2:Can I have my $ 200 please ?  
 Person1:        Sure . Here you are , $ 200 , Thank you , please come again ! Now it ’ s my turn to roll the dice . 

informal