Excuse me, I'm looking for your 3 - liter Pepsis, the ones that are on sale this week. There don't seem to be any in the soft drink section.
We may be sold out of them. Let me check the back. ( The clerk goes to the storeroom, returning a few minutes later. ) I'm afraid we're out of stock. Would you like a rain check?
Yes, I would, thank you.
Let me get the manager to sign one for you.