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'.
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Question: Person1: Would you like some more rice ?
Person2:No , thanks . I'm full .

Answer: informal

Question: Person1: I Don't know how they do it ! Our competitors have undercut us by 10 % percent on the price of our latest model . There is no way will be able to compete against that . We're barely breaking even with the present prices .
Person2:These price wars are disastrous for our bottom line . If they're charging 10 % less than we are , we've got to find a way to lower our price while keeping our profit .
Person1: Profits are almost nonexistent now , we can't beat their price . How do they keep their price so low ?
Person2:We can try to lower our cost of production then . We need a price that we can compete with , something comparable with the competition .
Person1: You really think we can make it ? I don't have much faith in our ability to lower the price again . We're no match for them , the competition will beat us hands down .

Answer: formal

Question: Person1: who is your favorite NBA star ?
Person2:Kobe Bryant , of course .
Person1: Kobe ? I know him , the key guy of the Lakers , a heck of a NBA player . He is on fire when he breaks through enemy defense .
Person2:He is competent both in driving the lane and shooting jumpers , but what really makes him formidable is his ability to switch up and dribble with his left hand .
Person1: Maybe he is not good ay rebounding ?
Person2:indeed , no man can be perfect . He is just so-so in crashing the boards . Usually he plays shooting guard . Rebounding might not be his strong suit .
Person1: Kobe came to Beijing during this summer's Olympics . Did you go to the match between China and USA ?
Person2:who wouldn't ! My friend Lee went so far as to get an autograph from him .
Person1: well then , what are your spoils ?
Person2:well , nothing more than a jumble of photographs .

Answer:
formal