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: Kevin ? Hi , it ' s Elizabeth . I have a big favor to ask you .
Person2:How big , Elizabeth ? Last time you said that , I ended up working overtime 3 nights in a row !
Person1: Well , I ' Ve got a huge load of typing and Mr . Blake has insisted I get it done by tomorrow afternoon .
Person2:All right , Elizabeth . But this is the last time .

A: formal
****
Q: Person1: Can I talk to you for a moment , manager ?
Person2:Yes , of course . What is it ?
Person1: I've decided to leave .
Person2:Leave ? Why ?
Person1: I've worked here for two years . And I want to do something different .
Person2:What do you mean by something different ?
Person1: I want to live abroad and learn to speak a different language .
Person2:I'm really sorry . But I understand .
Person1: Thank you , manager .

A: formal
****
Q: Person1: It's too hot to read .
Person2:We'd better go out for a walk .
Person1: Which season do you like best ?
Person2:Spring .
Person1: How about summer ?
Person2:I dislike it most .
Person1: Why ?
Person2:Because the hottest season is summer in a year .
Person1: But sometimes summer is more charming than the other seasons .

A:
informal
****