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: Let's go for a drink after work .
Person2:Nothing doing .

A: informal
****
Q: Person1: Fred , can you tell me how I can open my QQ Zone ?
Person2:Click your right key of mouse and choose QQ Zone .
Person1: Well , I have to provide some of my information , right ?
Person2:Yep ! The nick name for your zone , address , gender and so on . Some of them are privacy , so you have the right to keep secret here .
Person1: All information is filled in and now I can design my zone .
Person2:You can choose one type to make it as your background , and then find a music player and put your favorite songs into it , so your visitors can enjoy the music after entering into your zone .
Person1: Now everything is OK . I can write my blog , right ?
Person2:Certainly .
Person1: ( Half an hour , Janice begins shouting excitedly . ) What's the matter with you ?
Person2:Look ! David gives his following-comment on my first blog . He is my first visitor .

A: informal
****
Q: Person1: Have you ever played Making ?
Person2:Not really , but I know it is very popular a traditional Chinese gambling game .
Person1: Yes , some friends play it all day , all night , and sometimes a whole weekend . I tried to read about some basic rules online , but it is hard to understand . So I went to watch people play yesterday only to find I was even more confused . I think I have to work hard on those rules and more learning by doing . Practice makes the master .
Person2:Typical Francis , whether you are at work , or engaged in leisure time activities , you always show the same eagerness and curiosity to learn something new and improve yourself .
Person1: It is important to keep your mind up-to-date and active .

A:
formal
****