No sweat You bet Any time

I've used "no worries", "no biggie" (no big deal), "it's all good", "my pleasure" or "glad to help", depending on the context.

You could say: - "No problem" - "No big deal/no biggie" - "No worries" - "Thanks a million" - "It was my pleasure" - "The pleasure is all mine"

Not at all. Don't mention it. It's no bother. My pleasure.