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 are saying he will be promoted to the general manager ? 
 Person2:Yeah . 
 Person1:        Are you sure ? 
 Person2:Yes . I bet my bottom dollar that he will get promoted . 
 Person1:        Just because he gets on well with everybody ? 
 Person2:Partly , and he's also a hardworking man . 

informal