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 ’ m itching for moving ! 
 Person2:What ’ s the matter ? What annoy you ? 
 Person1:        It ’ s so wet and dark , I ’ m just fed up . 

informal