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: Tell me about how you work here .
Person2:We work in teams . There are about four to six people in each team . I'm training to be a team leader . Each team member is responsible for the quality of the goods we produce . We are multi-skilled so we can rotate jobs . I like that . It stops the work getting boring .

Answer: formal

Question: Person1: I don't think we come here at a right time .
Person2:What's wrong ?
Person1: The museum doesn't open today .
Person2:What a pity !
Person1: Where shall we go now ?
Person2:Why not have a visit to the zoo ?

Answer: informal

Question: Person1: What he said disappointed me .
Person2:What did he say ?
Person1: He advised me to change to a more suitable course .
Person2:Why ?
Person1: He said that career in law was unsuitable for a women .
Person2:It is stupid to say so .

Answer:
informal