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: 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 !

Output: informal

Input: Consider Input: Person1: Kim ! I'm here ! I brought all my old maternity clothes plus Dave and Alice's baby clothes !
Person2:It's a little early for those , isn't it ? I still have eight months to go ...
Person1: Believe me , the time will fly by ! Before you know it , you'll be changing diapers ! You have to start preparing !
Person2:I thought we could turn the upstairs study into a baby room . What do you think about lavender ?
Person1: I'll be back tomorrow with my work clothes and a gallon of lavender paint ! You just sit back and relax !

Output: informal

Input: Consider Input: Person1: Excuse me , do you have any English songs ?
Person2:Yes , we do . They are all in this book .
Person1: Great , thanks .
Person2:No problem . Just give us a few minutes more to pull them up , though . We don ' t get that many English singers !
Person1: Oh , I see .
Output: formal