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: I like this shirt.How much is it ?
Person2:$ 135 .
Person1: Wow , that's sheer robbery.Shall I make an offer ?
Person2:I'm sorry , sir.The price is fixed .

A: informal
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Q: Person1: Now I know why I split up with Mike . We found we were simply not good for each other .
Person2:In what ways ?
Person1: Well , he is a typical Sagittarius guy , while I am a Cancer . We aren't really compatible
Person2:Ha-ha , so you believe in astrology ?
Person1: What's strange about that ! As a person born under the sign of Cancer , I am home-loving and wish for a peaceful family life . But according to astrology , Sagittarius guys are too adventurous and risk-taking.They seldom think of leading a settled and peaceful life .
Person2:Is that so ? I'm afraid it is too narrow-minded to judge people using astrology . It's all stereotypes !
Person1: But in my case , the fact matches the theory . Mike is humorous , energetic , always as fresh as a daisy , but probably too ambitious . It frightens me !
Person2:But as far as I remember , you two caught on like a house on fire when you first met .
Person1: Exactly . But later on , he cares more about his career than love . Work seems to be the better all , and all for him-so much that he doesn't even grudge sparing a day out with me .

A: informal
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Q: Person1: This place is so quiet and peaceful . It ' s really different from my pad at city .
Person2:Sure , do you think you could live out here ? You know , back to nature at all ?
Person1: I don ' t know . I don ' t mind coming out here for a while , but that will get old pretty soon .
Person2:That ' s what I was thinking . I mean can you imagine Friday night instead of going out with your friends you ' d have to stay in your tree house and talk to birds and squirrels .
Person1: I think I ' d go lonely if I do like that .
Person2:And where would you get a cup of cappuccino ?
Person1: Now that would be hard to live without . We city folks are pretty spoiled .
Person2:Maybe . But I ' d rather be spoiled than turn into a crazy guy with a long period to talk to the birds .

A:
formal
****