Do you carry black ink?
The ink should be next to the paper clips and thumb tacks in the stationary section, sir.
I've looked for, but I didn't see any black ink.
Then I'm afraid there's none in stock.
Well, I'll settle for blue-black. I'll also take a dozen airmail envelopes.
They come in packages of ten or twenty.
Give me a package of twenty, then. And where do I find shoelaces?
On counter three.
Thank you. I never can find my way around this store.
I know. It took me three weeks, and I work here.