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'.

[EX Q]: Person1: Hey , Vernassa . why be angry look ?
Person2:It's the new neighbor . I hate her guts .
Person1: I've never seen you so worked up . what did she do to you ?
Person2:She made another white crack about my clothes .
Person1: Are you sure she was trying to put you down ?
Person2:Of course , I am sure .
Person1: You shall go easy on her . she is new here .
Person2:Just how am I supposed to do that ?
Person1: You shall just take it in surprise .
Person2:I've tried , but she keeps pushing my buttons .
Person1: Try to pull it together , Vernassa . I am sure things will turn note , ok ?
Person2:I am not . she is no picnic .
Person1: Well . if you think I can help , let me know .
Person2:Thanks , Serena .
[EX A]: informal

[EX Q]: Person1: Congratulations on the new house !
Person2:Thanks ! We love it .
Person1: Well , you guys worked hard for it . It's really beautiful .
Person2:I'm just not looking forward to cleaning it !
[EX A]: informal

[EX Q]: Person1: What's your email address ?
Person2:It's bulldog 123 .
Person1: Bulldog 123 . Are you sure that's all ?
Person2:Yes .
Person1: No . That's incomplete .
Person2:What do you mean ?
Person1: What's your mailing address ?
Person2:456 Cherry Drive , Pasadena , CA 91170 .
Person1: That's correct .
Person2:So what's the problem ?
Person1: Bulldog 123 is just the street . You have to give me the city , state , and ZIP code .
Person2:Oh , I get it . My email address is bluedog123@yahoo.com .
[EX A]:
formal