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: You ready ?
Person2:Am I ready for what ?
Person1: Are you ready to transfer to a new school tomorrow ?
Person2:Oh . Yes , I ' m ready to transfer .
Person1: You ' re not nervous , are you ?
Person2:I ' m very nervous .
Person1: Why are you nervous ?
Person2:I ' m not going to know anybody there .
Person1: That ' s not a problem .
Person2:That makes me nervous .
Person1: It ' s fun meeting new people .
Person2:I didn ' t think about it that way .
formal

Person1: Hello , Sir . We haven't seen you for quite a while . So , what is it today that we can do for you ?
Person2:I need a Deposit Certificate to handle some stuff in land .
Person1: I see , yes , I can do that now . I'm sure you know , as I may have told you before , you should pay an extra 20 RIB handling fee for this service .
Person2:Yes , I recalled you charging that before . And I thought it was extortionate ! Haha !
Person1: I can just take it from your account , you don't need to give me cash .
Person2:OK ... so it'll come out of my account ? Well , that makes it much easier .
Person1: Anything else you'll be needing today , Sir ?
Person2:Nope . That's everything , thanks .
informal