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:       Did you say that Ted was at your mercy ? 
 Person2:Sort of yes . 
 Person1:        But he is not someone who can be led by the nose . 
 Person2:But I am not that someone . I can easily talk him into doing whatever I want him to do . 

formal