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: Consider Input: Person1: Are you a goal-oriented person ?
Person2:Yes , I am . That's why I make plans before I do anything .
Person1: How do you plan to do your present job ?
Person2:I want to make more contact with extra clients and use my organizational skills in the future .

Output: formal

Input: Consider Input: 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 .

Output: formal

Input: Consider Input: Person1: Excuse me .
Person2:Yes , sir . Can I help you ?
Person1: Um , this steak , I asked for to be medium rare .
Person2:Medium rare , that ' s right , sir . I remember your order .
Person1: Well , I ' m afraid it isn ' t . It ' s a bit too well done and rather tough . Would you mind changing ?
Person2:If it is not to your satisfaction , I ' ll certainly bring you another . But I ' m afraid you may have to wait for a few minutes .
Person1: Yes , that ' s all right . Thank you very much .
Output: informal