We say thank you when we want to show our appreciation or gratitude for something that somebody else did.
We say anytime in response to thank you. Anytime is similar to you’re welcome, no problem, my pleasure, not at all, glad to help, of course, etc.
The dialogue below will show you how to use thank you and anytime:
Nick: Did you have time to go to the shop after work?
Sam: I did but I was in a hurry so I only got a few things.
Nick: By any chance, did you have time to pick up a new calculator? I really need it for the mathematics test tomorrow.
Sam: I did, luckily they were at the front of the store staring right at me while I waited in line.
Nick: Thank you! You’re a life safer!
Sam: Sure, anytime!
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