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 seem to have all the jitters about Jane .  
 Person2:Yeah . I am on edge since she was out to the match .  
 Person1:        Keep your fingers crossed . She'll bring home the bacon .  
 Person2:I do have the confidence , but I still worry about her . 

informal