thank you回答

It’s a pleasure较好
还有Not at all。熟人之间用That’s all right.还有You’re welcome。my pleasure.都行

my pleasure.

you are welcome.
My pleasure.
With pleasure.

我知道你很感激，不过那没什么，不用谢。
I know you're grateful,but that's all right,any time.
不用谢。You are welcome.