instruction:
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'.
question:
Person1: Hi , Sara , what are you reading ?
Person2:Hi , John , I am trying to find a carpenter .
Person1: Why ?
Person2:Well , I want to build a deck in my back yard .
Person1: What for ?
Person2:So I can have a special place to hang out with friends , and also do some barbecuing on weekends .
Person1: That sounds cool . Do you mind if I recommend myself for the job ?
Person2:You ? Do you have a carpenter's license ?
Person1: Yes , of course . But I only freelance on weekends with my uncle .
Person2:Wow ! That's cool . So , let me give you some details about the deck I want .
Person1: Please go ahead , I am listening .
Person2:I'd like my deck to be at the same level as the back door .
Person1: Is your back door higher than the ground level ?
Person2:Yes , the back door is about four or five steps higher than the ground .
Person1: Okay , then you need a deck with a guardrail .
Person2:I don't like things to be fancy .
Person1: Don't worry . I will build your deck with a simple but classic look .
Person2:Hmm , that's good . Can you use cedar or redwood to build it ?
Person1: Cedar is a good choice .
Person2:Well , let's take the measurements right now .
answer:
informal

question:
Person1: I ' Ve got this really neat idea , you can hire a car and drive straight there .
Person2:Are you nuts ? What would my friends think if they see me in a hired car ?
Person1: But that ' s the quickest way to make your plans work .
Person2:Oh this is hard ! Well , I ' ll see what I can do .
answer:
informal

question:
Person1: Have you heard about the new iPhone ?
Person2:yes , I heard it's supposed to come out in June . Are you thinking about getting one ?
Person1: I'd like to . It's a cell phone , camera , PAD and mp3 player all in one .
Person2:if I had enough money , I'd buy one , but I don't even have enough to buy one of their shuffle spods .
Person1: how big is a shuffle iPod ?
Person2:the first generation iPod shuffle is about the size of a park of gum and the second generation iPod shuffle is about half the size of the first .
Person1: how many gigs of music can it hold ?
Person2:I think it's either one or two gigs . I can't remember .
Person1: how much do they cost ?
Person2:not much at all . I think it's about 100 dollars .
Person1: you're right , that's not bad at all .
Person2:do you have an iPod ?
Person1: I got one for my birthday when they first came out , but after the battery died out , I never brought another one .
Person2:why didn't you just buy another battery for it so you could use it ?
Person1: that's one of the problems with having an iPod . Though an iPod might have an above average battery life , once the battery is dead , so is your iPod .
answer:
formal