You turn around to find the saleslady watching you. "Can I help you?" she asks politely.
"Actually, I'm looking for this dress I once saw. It was a beautiful pink ballgown with a velvet bodice and the skirt had glow in the dark stars all over it." you tell her.
"That sounds sweet! Only I don't think we've carried any pink ballgowns here, ever. But I can show you the ballgowns we do have!" the saleslady bubbles at you.