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: It smells like an ashtray in here !
Person2:Hi honey ! What ' s wrong ? Why do you have that look on your face ?
Person1: What ' s wrong ? I thought we agreed that you were gonna quit smoking .
Person2:No ! I said I was going to cut down which is very different . You can ' t just expect me to go cold turkey overnight !
Person1: Look , there are other ways to quit . You can try the nicotine patch , or nicotine chewing gum . We spend a fortune on cigarettes every month and now laws are cracking down and not allowing smoking in any public place . It ' s not like you can just light up like before .
Person2:I know , I know . I am trying but , I don ' t have the willpower to just quit . I can ' t fight with the urge to reach for my pack of smokes in the morning with coffee or after lunch ! Please understand ?
Person1: Fine ! I want a divorce !

Output: informal

Input: Consider Input: Person1: Hi , charlie , are you busy this evening ?
Person2:Sorry , I'm afraid that I've got plans tonight .
Person1: What are you doing ?
Person2:I'm going to my parents ' house for my father's birthday .
Person1: How old is he today ?
Person2:It's his 50th birthday .
Person1: Well , wish him a happy birthday for me .
Person2:Sure thing . What are your plans for the evening ?
Person1: I was just thinking of going to a movie tonight .
Person2:Well , if you can wait until tomorrow night , I'll go with you then .
Person1: Sorry , I've got people coming over tomorrow night .
Person2:Sounds like this weekend just isn't going to work out for us .
Person1: Sounds that way . Maybe some other time then ?
Person2:Sure.Hey , I'm sorry , but I've got to get going .
Person1: Yeah , me , too . It's about time I made a move .
Person2:Say hello to your friends for me .
Person1: Likewise . See you later .
Person2:Bye !

Output: informal

Input: Consider Input: Person1: I'll always remember my college days .
Person2:Oh yeah ?
Person1: It was one of the best times in my life . It was tough , but I made it . I became a college graduate .
Person2:How did you feel when you graduated ?
Person1: It was a round day for me . My family attend the graduation ceremony . I was so nervous . I couldn't find my cap and gown , but all worked out in the end .
Person2:What did you do after graduation ?
Person1: I was planning to attend gradate school , but then I was offered a good job doing marketing , so I changed my mind .
Person2:Sounds like you're happy with your decision .
Person1: I sure am . So what about you ? How did you feel when you graduated ?
Person2:It was also a proud day for me , but I also felt like a kind of loss that day .
Person1: How could it be ?
Person2:While seeing others going to work or continue their study , I didn't know what I would do .
Person1: You didn't have an offer ?
Person2:I had one , but I didn't like the job very much . I wanted to attend graduate school , but I was afraid it would be too tough .
Person1: I think you lack in the power of decision . Once you make your decision , don't be overtaken by misgivings and fear . Just go full steam ahead !
Output: informal