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 really like my debate class . 
 Person2:Do you think you'll be interested in studying law later ? 
 Person1:        I've entertained the idea . But I'm I leaning more toward politics . 
 Person2:You want to be a politician ? Yuck . 
 Person1:        That's not like you to generalize . 
 Person2:Sorry , you're right . I think you'll be a good politician . 
 Person1:        I think I can do a lot of good for our country . 
 Person2:You're right . We need more people like you in politics . 

informal