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: what kinds of tv programmes do you enjoy watching ?
Person2:I like current affairs programmes and documentaries , especially wildlife ones . How about you ?
Person1: I like those kinds of programmes too . They ' re very informative . I think that many people underrate the education value of tv .
Person2:I agree . People often criticize tv for showing too much sex and violence .
Person1: yeah . And that ' s so funny because most people prefer watching sex and violence to watching something more educational !
Person2:right . You can ' t blame the tv stations for showing popular kinds of programmes . They need to make money from advertisements shown during and between programmes .
Person1: in my country , there ' s a time limit on the advertisements that can be shown . I think it ' s about six minutes per hour .
Person2:that ' s great idea . But don ' t the tv station lose a lot of money because of that ?
Person1: no . they don ' t . they simply charge higher prices at peak times . Is there no limit on the amount of advertisements that can be shown on tv in your country ?
Person2:not as far as I know . We have so many advertisements . the interruptions are unbearable sometimes ! That ' s one reason that many people prefer satellite or cable tv , where you pay a fixed amount each mo
Person1: some people have satellite and cable tv in my country , but people don ' t seem to keen to pay for their tv programmes . Besides , the terrestrial channels offer a good range of programmes .
Person2:well , there ' s a wildlife documentary on tv in a few minutes . Shall we ?
[A]: informal

[Q]: Person1: Hi , charlie , are you busy this evening ?
Person2:Sorry , I'm afraid that I've got plans tonight .
Person1: What are you doing ?
Person2:I'm going to my parents ' house for my father's birthday .
Person1: How old is he today ?
Person2:It's his 50th birthday .
Person1: Well , wish him a happy birthday for me .
Person2:Sure thing . What are your plans for the evening ?
Person1: I was just thinking of going to a movie tonight .
Person2:Well , if you can wait until tomorrow night , I'll go with you then .
Person1: Sorry , I've got people coming over tomorrow night .
Person2:Sounds like this weekend just isn't going to work out for us .
Person1: Sounds that way . Maybe some other time then ?
Person2:Sure.Hey , I'm sorry , but I've got to get going .
Person1: Yeah , me , too . It's about time I made a move .
Person2:Say hello to your friends for me .
Person1: Likewise . See you later .
Person2:Bye !
[A]: informal

[Q]: Person1: what do you think about all the different diets people go on ?
Person2:I don't think dieting is good for you . It's much better to eat a balanced diet and to never get overweight to begin with !
Person1: but what do you think about people who are obese ? What should they do to lose weight ?
Person2:they need to eat healthy foods , but they also have to increase the amount of exercise they do every day . They don't have to cut out fattening foods altogether , though .
Person1: so you think it's ok for people who are dieting to eat chocolate ?
Person2:sure , they can eat some chocolate . As long as they are exercising and eating mostly healthy foods , there's nothing wrong with having a small desert .
Person1: how about drinking soda ?
Person2:many people gain weight by drinking far too much soda . Soda should be a treat ; there's simply no nutritional value in it whatsoever . If you want to lose weight and you can't stop drinking soda , try
Person1: that's good advice . Have you ever tried taking vitamins ?
Person2:my mother used to make me take vitamins every day , but I don't take them anymore . Vitamins are good as a supplement , but they don't do much good if you don't have a well-balanced diet to start .
Person1: how do you know so much about food and dieting ?
Person2:you might not believe this , but I used to be twice the size than I am now !
[A]:
formal