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 always think everybody looks down on me 
 Person2:Don't be that negative . 
 Person1:        How can you be optimistic ? You can see it in their eyes . 
 Person2:I find it there is no meaning in living this world . 
 Person1:        Don't be that negative . 
 Person2:Really , life is so boring . 

formal