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: It's taking you forever to do my hair .
Person2:Give me a minute .
Person1: You should've been done already .
Person2:There you go .
Person1: I don't think that you're done .
Person2:What's wrong ?
Person1: My hair looks hideous .
Person2:What's so bad about it ?
Person1: It doesn't look good at all .
Person2:Sorry about that .
Person1: I really hope that you didn't expect me to pay you for this .
Person2:Well , let me talk to my manager , okay ?
[A]: informal

[Q]: Person1: I'm worried sick that she will leave me tomorrow .
Person2:It's no use arguing the toss .
Person1: Maybe I'll have to face the music .
[A]: informal

[Q]: Person1: I think that the company retreat should be in the mountains this year .
Person2:What a great idea !
Person1: January would be a good month for a mountain retreat .
Person2:I like the mountain idea , but I am not so sure about the month of January .
Person1: You know , now that I think about it , you might be right .
Person2:April might be nice . It is far enough away to make the necessary arrangements .
Person1: That is a good suggestion .
Person2:We could ask everyone what would be the best time for them .
Person1: Yeah , that would let us know what would work best .
Person2:I'll put the survey online this afternoon .
[A]:
informal