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 hate this kind of weather !  
 Person2:When I was a kid , there was a weather who said there is no such thing as bad weather .  
 Person1:        I think he had water on the brain . This is bad .  
 Person2:He said there are only all kinds of good weather .  
 Person1:        Okay , Pollyanna , what's so good about this weather ?  
 Person2:Well , for one , we have an excuse to stay home .  
 Person1:        We ' get ' to stay home ? Do you know something that I don't ?  
 Person2:I know that there is hot chocolate in the kitchen and some new Cds just waiting for us . 

informal