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'.

[Q]: Person1: He has come to life in the end .
Person2:Oh , thank God . We all felt frightened by the bad new about him .
Person1: Yes . Fortunately , an ambulance passed in the nick of time , and we got him away to hospital .
Person2:Right . Unless , who know what will happen .
Person1: Wish him to be healthy soon .
[A]: informal

[Q]: Person1: I'm sorry , but I can't go .
Person2:Why not ?
Person1: I have to see my daughter .
Person2:When poyou have to see her ?
Person1: I have an appointment at one fifteen .
[A]: formal

[Q]: Person1: Have you been to Shanghai before ?
Person2:Yes I have . I ' Ve been there three times in the past year .
Person1: That sounds great . Have you been to the top of the Pearl Tower ?
Person2:No I haven ' t . I haven ' t visited the Bund either . I ' Ve always had too much work to do .
Person1: So you haven ' t done much then , in Shanghai ?
Person2:Actually , I ' Ve eaten soup dumplings in a lovely restaurant on Nanjing Lu . They were delicious !
[A]:
informal