A: I would like to buy this new laptop, please. B: Would you like to buy the warranty? A: What is a warranty? B: It's something that fixes your machine should it break. A: How does it work? B: If your laptop breaks, just bring it in and we'll fix it. A: How much is the laptop? B: It costs $550 without tax. A: How much is the warranty? B: The warranty is $40 for two years. A: I think I'll be fine with just the laptop. B: Alright, but you can always change your mind.