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:       When I was a little boy , I had a dream of becoming a lawyer . 
 Person2:Your dream comes true now . 
 Person1:        Yes , I knew I would make it . 
 Person2:You are really confident . 

informal