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:       Mary seems depressed . What ’ s the matter ?  
 Person2:She didn ’ t expect to get a kick in the teeth after a day ’ s hard work .  
 Person1:        Poor girl ! 

formal