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: Excuse me , sir ? I just need a little bit more information . Could you tell me your telephone number and mailing address ?
Person2:Sure . My number is 545-8897 , and I live at 908 Mulbury Street .
Person1: That ' s 545-8897 and your mailing address is 908 Mulbury Street . The zip code is 20310 , right ?
Person2:That ' s right .
[A]: formal

[Q]: Person1: Smith is always careless , it is his Achilles ' s heel .
Person2:He would get very angry if anyone criticized him .
Person1: He will burn his fingers .
Person2:If only he knew it .
[A]:
informal