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: Do you think the weather will be good this weekend ?
Person2:I heard it might rain .
Person1: Oh . That ' s a pity . I thought that we might go hiking in the hills .
Person2:Mmm ... Well we could go to that new art gallery instead .
Person1: Yes that might be a better idea .
Person2:Maybe we ' ll meet some of the artists too .
Person1: Ok - let ' s do that then !
[A]: informal

[Q]: Person1: How is your appetite today ?
Person2:I'm rather hungry now .
Person1: What would you like to have ?
Person2:Please give me a piece of pie first .
Person1: Which would you rather have , beef or chicken ?
Person2:Beef , please .
Person1: How about drinks ? Coffee or tea ?
Person2:Coffee , please .
Person1: Do you want to take milk and sugar ?
Person2:Only black coffee .
[A]: formal

[Q]: Person1: The country is strong only in appearance . Don ' t you think so ?
Person2:Yes . In fact there are quite a large number of people who have no food to eat and no place to live in .
Person1: You can say that again . The government must open it ' s eyes to the fact .
[A]:
formal