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:       Judy , what is everybody talking about ? 
 Person2:Haven ’ t you heard ? Richard was fired by our manager . 
 Person1:        You ’ re kidding . It can ’ t be true . 
 Person2:Believe it or not . Everybody is talking about it in the company . 
 Person1:        Really ? I ’ m surprised . 
 Person2:Me too . 

informal