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 hard working man . 

formal