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 don't like this movie . It's a bomb .  
 Person2:Look , I've already paid for the tickets , so whether you like it or not we're going to finish watching it .  
 Person1:        Well , give me the Walkman . I'll listen to the music then .  
 Person2:Come on . Give it a chance . The movie just started . 

informal