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: you are dressed to kill . You look gorgeous , Alexander .
Person2:thanks . This is my power suit . I have a dinner date tonight .
Person1: how did you meet each other ?
Person2:she's a friend of Amy . We met at Amy's birthday party .
Person1: is this your first date ?
Person2:yes . I hope it pans out . Cross your fingers , Lily .
Person1: sure it will . Oh , no , it's seven fifteen already . I'm going to be late for my date .
Person2:oh ... so you buried the hatchet with Steven ?
Person1: absolutely not ! He's a cheater . I will never talk to him again . I'm over with him . He's history !
Person2:then who will you meet tonight ?
Person1: a guy I met on the internet three month ago .
Person2:really ? Are you sure this is a good idea ?
Person1: please don't be so fussy ! I didn't just meet him yesterday .
Person2:I know , but remember to meet in a public place and don't give out your personal information .
[A]: informal

[Q]: Person1: I can ' t believe the cost of apartments in New York City .
Person2:Oh , you didn ' t know that apartments here are considered valuable , even if they are small and crowded ?
Person1: Of course I had heard about that , but now I know how expensive it is to rent a place here .
Person2:I don ' t mind paying high rent to live in New York .
Person1: Why ? You pay so much for such a tiny space to live .
Person2:Yeah , but so what ! I ' m proud to live in the world ' s most exciting city . And , the salaries here are the highest in the nation , too .
[A]: informal

[Q]: Person1: Are things still going badly with your houseguest ?
Person2:Getting worse . Now he ' s eating me out of house and home . I ' Ve tried talking to him but it all goes in one ear and out the other . He makes himself at home , which is fine . But what really gets me is that yesterday he walked into the living room in the raw and I had company over ! That was the last straw .
Person1: Leo , I really think you ' re beating around the bush with this guy . I know he used to be your best friend in college , but I really think it ' s time to lay down the law .
Person2:You ' re right . Everything is probably going to come to a head tonight . I ' ll keep you informed .
[A]:
informal