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'.

Person1: Hey , let's arm wrestle !
Person2:Not now .
Person1: Chicken ! You're afraid I'll beat you .
Person2:Are you kidding ? I just feel tired right now .
informal

Person1: Aren ' t you going to swim ?
Person2:Are you kidding ? Don't you know I can't swim ?
Person1: You are not telling me that we drove 50 miles to come here for just sunbath , are you ?
Person2:Hey , don't shout . Come here ! Sit closer . Now , Jim , we ' Ve had a lovely day . Don't spoil it now .
Person1: What about your beautiful bathing suit ? We shopped all day . Don't you want to show it off ?
Person2:Everybody who walks past me sees it . Besides , it's a good sunbathing suit .
Person1: All right . Suit yourself . I am going swimming .
Person2:Jim !
Person1: Yes ?
Person2:Can you get me a beach umbrella and a deck chair ? I am really tired of lying in thousand .
Person1: I've got a better idea . Why don ' t we hire a boat and go for a ride ? What do you think ?
Person2:Are you serious ? That will be wonderful !
informal

Person1: Did you see the fashion awards last night ?
Person2:I sat through about half of it but they lost me after that .
Person1: Not interested ?
Person2:Not really , to be honest . Some of what they call fashion looks terrible to me .
Person1: But they are showing what will be all the rage next year .
Person2:All the rage with whom ? I never see anyone wearing these designs on the street .
Person1: Did you know that fashion is cyclical ?
Person2:What , it keeps coming back ?
Person1: Precisely ! For example , Flares were popular for a while , then went out of fashion . Now we can start to see them coming back in again .
Person2:Flares ?
Person1: They're also known as bell-bottoms . They are a type of trousers .
Person2:It's too complicated . I'll just stick to the plain clothes .
Person1: That's fine , but then you'll always look plain .
formal