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: Have you ever seen coco ?
Person2:I've seen her on TV but not in the flesh .
Person1: I'm so familiar with her songs , but I don't know what kind of person she is in real life .
[EX A]: formal

[EX Q]: Person1: Yes , sir ?
Person2:I hate to complain , but this soup is too salty .
Person1: I'm very sorry , sir . I'll ask the manager to take care of this .
[EX A]: informal

[EX Q]: Person1: What reason do you have for missing school ?
Person2:I was sick .
Person1: How were you sick ?
Person2:I had a stomachache .
Person1: Did it get any better ?
Person2:I'm still feeling under the weather .
Person1: Would you like anything for your stomach ?
Person2:I took something earlier .
Person1: Get better .
Person2:Thanks a lot .
[EX A]:
informal