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: Why didn't you sign the contract ?
Person2:Because that company's behavior is not in accordance with international law .
formal

Person1: I need some flowers for my girlfriend .
Person2:No problem . Would you like some artificial carnations ?
Person1: Oh , no . Carnations are not very elegant.Artificial flowers have no passion .
Person2:How much did you want to spend ?
Person1: Money is no object .
Person2:Our most elegant flower is Golden Lily .
Person1: I will take ten .
Person2:Do you want to add some baby ' s breath for that ? They are equally popular now .
Person1: Of course . Can I have it delivered to my girlfriend's house this afternoon ?
Person2:Yes , but there is a five dollars delivery charge .
Person1: That's ok . Here is the address .
formal

Person1: Is your city a historical place ?
Person2:Not rally . 200 years ago , it was just a small insignificant village .
Person1: How did it grow into such a large place ?
Person2:Large deposits of coal were found nearly and so many industries located themselves here . The village quickly grew into a key industrial centre .
Person1: As the city grew , it must have absorbed many village nearby .
Person2:Yes , it did . The names of those village survive as the names of parts of the city .
Person1: I see . Are there any building more than 200 years old in your city ?
Person2:Oh , yes . Several of the buildings from the villages still survive . Many of them were inns for travelers and today survive as pubs . There was a castle near one village , so our city has a castle too .
Person1: Really ? So your city does have some old history after all .
informal