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'.

[EX Q]: Person1: John , you have done a good job . Our new series computer is appreciated by the guests . They intend to sign contracts with our company . You really did a good job .
Person2:Thank you . I can't imagine the design of the new computer is so popular among computer users .
Person1: Hah , as the sale department director of our team , you are the best .
Person2:I am flattered . But I am not sure whether the manager is satisfied with it . She asked me to her office .
Person1: Why not ? You've done so well for the company . She should give you a prize .
Person2:I feel nervous when I face her . She looks so serious when we have a conversation all the time .
Person1: Come on ! What are you nervous about ?
Person2:It is said that the sales for the new computer did not meet the expectation .
Person1: But the sale number is close to the predicted amount .
Person2:I'm still nervous . I don't know what to say to the manager . I always feel ill at ease in that kind of place .
Person1: Take it easy . Be confident . I'm sure you can do it .
[EX A]: informal

[EX Q]: 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 .
[EX A]: formal

[EX Q]: Person1: Happy birthday ! This is for you , Kate .
Person2:Thanks , Miss . Wang .
Person1: You know in China we usually don't open presents until the guests leave .
Person2:Really ? I've already opened it . Great ! And it is exactly after my fancy . Thank you very much .
[EX A]:
informal