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:       I would like to order a suit made to my own measure . 
 Person2:I share the same opinion . You are over-weight so it's hard for you to buy clothes . 
 Person1:        Maybe I should try to lose weight . 
 Person2:Here is one tailor's shop . Why not order one here ? 

informal