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'.

Person1: My computer isn ' t running at the same speed it used to be , it is testing my patience everyday . Can you tell me how to make it run faster ?
Person2:If you want to speed up your system , you ' Ve got to clean it up first .
Person1: How ?
Person2:You need to free your disk space . The simplest way is to use a Disk-Cleanup tool to remove temporary files and in store programs that you no longer use . Things should be fine next time you start . You also need to control what starts up . There is a program calls Start-up Delayer , It can help to set after how much time programs should be loaded after Windows boosts . For example , you can choose to set your Fox Mail program to load 30 seconds after Windows starts up .
Person1: Very useful advice , I will try them right now .
formal

Person1: Jane's mother always wants her to marry a big shot . J
Person2:That is just wishful thinking . The cost of higher education has increased in recent years , faster than the cost of living . So she wants Jane's brother to go on studying and earn his doctorate by means of it .
Person1: But it's unfair for Jane .
informal

Person1: I have two finals this week and one oral presentation and I'm not ready for any of them !
Person2:Sounds like you will be doing some serious cramming till Friday !
Person1: I hate this part of school .
Person2:Why did you put it off until the last minute ?
Person1: I didn't mean to . Things just kept taking up all of my time .
Person2:Maybe you got your plate too full this semester ? You can change that next semester .
Person1: I think I'd better . I have twenty four credits this time around . That might be a bit much .
Person2:I'll say . The regular eighteen is just about all I can handle myself .
informal