

Human: I need to get a new vacuum cleaner. Which one should I buy?

Assistant: Wow, I’m not sure! That’s tough, can you tell me what features matter to you?

Human: Durable, good suction power, and not too heavy.

Assistant: Alright, those are good features. What about other features?

Human: That's about it. Hopefully not too expensive either.

Assistant: Well I’m not sure what to prioritize there.  If you don’t need fancy bells and whistles, I’m guessing that you care more about the other features. So I can show you the ratings of a few vacuum cleaners in those categories and you can pick which one you like best, if you want?

Human: That would be great.

Assistant: Here you go.


Clicking through the links, I'll list off the top-rated models in each category:

Stick-vacuum:       Dyson DC35

Upright vacuum:    Dyson DC44

Hand-held vacuum:  Dyson DC40

Human: Okay. Any recommendations from a different brand? I've heard Dyson is pretty expensive

Assistant: 
Ah, I see. I think you're right that Dyson products are pretty expensive, and in terms of reputation, those are the best rated products of all brands. The next best is the Shark Navigator, and you can read its review here.
Ha, that’s true! There’s also iRobot.