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: Ms . : Do you have a question , Mary ?
Person2:No . That's not why I raised my hand . I need to go to the ladies ' room .
Person1: Ms . : Let me give you a hall pass for it .
Person2:What's a hall pass ?
Person1: Ms . : With a hall pass , you can go to the ladies ' room or wherever you need to go during class time .
Person2:I see .
Person1: Ms . : If a teacher stops you in the hallway , just show him or her the pass .
Person2:Or else I'll get into trouble .
Person1: Ms . : That's right .
[EX A]: formal

[EX Q]: Person1: Hi ! Ed , what's up ?
Person2:Nothing .
Person1: Doesn't look like it to me .
Person2:Just get out of my face !
Person1: Woo , easy .
Person2:Leave me alone !
Person1: What are you so ticked off about ?
Person2:I don't want to talk about it .
Person1: Maybe I can help .
Person2:I blew the finally exam .
Person1: You've got to be joking .
Person2:No , I'm not .
Person1: Well , don't get bend on a ship about it .
[EX A]: informal

[EX Q]: Person1: Plaza Hotel , good morning . Leo speaking .
Person2:Ah yes , I'd like to book two rooms for myself and my father . Could you tell me the cost of a single room per night ?
Person1: Certainly . A single room is 120 dollars American , per night .
Person2:Fine .
Person1: And when would you like the rooms ?
Person2:From the 25th to the 28tri of September .
Person1: Arriving the 25th of September and leaving on the 28th ? Three nights ?
Person2:That's right .
Person1: Just a minute please .
Person2:Yes , we have rooms available then . You require two single rooms ?
Person1: Yes , thank you .
Person2:Can l have your name please ?
Person1: My name is Mona White .
Person2:And your father's name , Ms White ?
Person1: Jack Webber .
Person2:Could you spell the surname please ?
Person1: Sure . W-E-double B-E-R .
Person2:Double P for Papa ?
Person1: No , double B for Bravo
[EX A]:
formal