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: We've got a problem ... it looks like we'll need more spotlights on the exhibition booth . The client thinks it's too dark , and they want to add halogen lighting . We've already got 3 sets of track lighting from you guys , do you think you could help us out and throw in some halogens ?
Person2:Oh ... Um ... I don't think so . you know the halogen lighting is much more expensive than your track lighting system . Plus I'm going to have to call in some guys to install it for you . That's not going to come cheap .
Person1: But it would only be adding to the existing structure . We're not talking about anything new here ...
Person2:It doesn't matter because we will still have to call the electrician out , and they are union labor . It'll cost you a pretty penny ...
Person1: How much do you think it would cost ?
Person2:Mumm , I estimate it'll run in the neighborhood of ... $ 500 per light .
Person1: $ 500per light ? ! That's ridiculous ! It can't possibly be that expansive !
Person2:It is , I'll tell you why . We'll have to call in the electrician , he's going to charge overtime now because it's already 5PM , and it will probably take him an hour a light . Plus , the halogen lights take more electricity , so your electrical cost is going to be higher as well .
Person1: Can't you give me a break on this ? We've already spent so much money on lighting , I hate to have to blow so much more on halogens .
Person2:No , that's the cost , and that's what it's going to cost us . We can't go in the hole with this . I am giving you my best price , so take it , or leave it .

A: informal
****
Q: Person1: Hello , there . What can we do for you today ?
Person2:I received some leaflets in the post from you , one of them talked about a new service you have where you can transfer money between this bank and securities companies . Is that right ?
Person1: Yes , that's right . We have just introduced the program , but it's very popular already .
Person2:I also read that if the customer is a stock investor , which I am , it's possible to get additional benefits ?
Person1: Right again . We can provide a tailored consultation service for you , giving you the latest quotes from the Stock Exchange and help you to plan what exactly you do with your investments .
Person2:What if I don't want to come in to the branch , can I use the consultation service over the phone ?
Person1: Certainly , Sir . Via phone or Internet , any time , any place .

A: formal
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Q: Person1: Today people are hearing about information superhighways and the intermet .
Person2:Is this change going to be beneficial for theindividuals like you and me .
Person1: Yes , I think so . My friend once used it mostly to play chess , but now he has learnt how to do other things on the Internet .
Person2:There's no doubt the Internet will be a powerful commercial medium . It'll connect hundreds of millions of customers and open up huge markets for all kinds of products and services .
Person1: That's true . I can imagine companies sending advertisements directly to customers over the net . Customers , in turn , can examine and compare whatever goods they want to buy and tell their computers to find them at the best price offered .
Person2:Yeah . It'll be a shoppers heaven . That's the use of net in E-commerce .

A:
formal
****