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 Input:
Person1: Paul , let's go and see Grandpa this afternoon .
Person2:But Grandpa will be working .
Person1: It's Saturday .
Person2:I almost forget .

Ex Output:
informal

Ex Input:
Person1: Hi , Tom . You forgot to put on your sports shoes ! It's Games Day today !
Person2:Well , I have them in my bag . I'Il put them on right away !
Person1: Let me give you a hand . You are carrying so many books .
Person2:Thanks !
Person1: Have you forgotten the cheers ?
Person2:No , I haven't . I've tried hard to remember and I'm quite sure I've memorized the rhythm correctly .
Person1: That's good !

Ex Output:
informal

Ex Input:
Person1: Hello , sir . Can I help you ?
Person2:Yes . I want to apply for a job you posted on the Internet yesterday .
Person1: What ' s the job title ?
Person2:Service Technician . How can I apply for this position ?
Person1: You need to fill out an Application Form .
Person2:Where is it ?
Person1: It is on the desk over there . Be sure to fill out everything . Don ' t leave any blank spaces . When you ' re done bring the application to me .
Person2:Okay . Thanks .

Ex Output:
formal