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:       What newspaper are you reading ? 
 Person2:New York Times . I read it everyday . 
 Person1:        Why don't you read the local newspaper ? 
 Person2:It's too biased . I just don't agree with their one-sided reporting . 
 Person1:        New York Times is better ? 
 Person2:Yes , they have a good reputation for fairness . 

formal