text: Sam: Guys, IT workers
  Sam: I need you help
  Tom: Anything broken again?
  Sam: no, I want to buy a new laptop, I was considering changing my 3-year-old MacBook Pro to a MacBook Air
  Tom: why? quite a strange change
  Sam: I don't need all the fancy options of it, I'm not an IT worker, I don't make animations nor I compose music
  Sam: So most of the powerful stuff inside it remains unused
  Sam: it's wasteful
  Tom: So what do you use your laptop for?
  Sam: I'm writing my PhD dissertation on it, I have quite many pictures, but that's all
  Zoe: hmm, it seems to me that what you need is a light computer with a good battery (that can keep up to 12 hours) and a lot of memory
  Sam: that would be perfect
  Zoe: ok, so in this case changing to a MacBook Air wouldn't be a bad idea
  Sam: exactly, that's what I thought, I don't need an expensive computer that has some amazing abilities that I'll never use
  Zoe: ok, get yourself one then, there is a new version of it
  Zoe: I think they launched it in November
  Sam: ok!
  Zoe: and if you want to buy it in the US, remember that there are a few states that don't have the sales tax
  Sam: which states?
  Zoe: I think on the East coast it's Delaware and New Hampshire, but google it
  Zoe: so if you're in Boston for example, you can always safe a bit by going to NH
  Sam: ok! Thanks for your help!
target: Zoe recommends Sam buying MacBook Air in a state with no sales tax.