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'.

Example Input: Person1: Excuse me , can you recommend some places for us to go tonight ?
Person2:Since it's your first time to Vienna , I think you should go to the concert .
Person1: Good idea . My wife has a fine ear for music . I am sure she would like it .
Person2:Have a nice evening .
Example Output: formal

Example Input: Person1: Will they send me a form telling me that I have been granted unemployment ?
Person2:A Notice of Unemployment Insurance Award letter will be sent to you .
Person1: What information will be in that letter ?
Person2:The Award Letter will inform you as to how much you will receive .
Person1: What other forms will I need to turn in ?
Person2:Every two weeks you will receive a Continued Claim Form that you must turn in .
Person1: What will they be asking me on that form ?
Person2:You must show that you were available and that you looked for work .
Person1: What else will they ask me ?
Person2:One of the questions they ask you is if you were well enough to work .
Example Output: formal

Example Input: Person1: I ' d like to open a current account .
Person2:Certainly . May I see your social security and your ID Please .
Person1: Here your are . I wonder how much interest can I earn for my current account .
Person2:Oh . Current account don ' t pay our interest .
Person1: Why is that ?
Person2:It ' s primarily design for business transactions . That is write checks to pay the bills , buying things and sending money . We won ' t expect a large amount of deposit in current account .
Person1: I see . How do I draw money from my news then .
Example Output:
formal