Ḿnh tóm lược lại vài cách thông dụng thế này:

EXPRESSING THANKS

- I'm very grateful for ...

- I'm so grateful for ...

- I'm extremely/ immensely/ most grateful for ...

- I really can't thank you enough (for)

- I should like to say how (very/deeply... ) grateful I am.

- I should like to express my gratitude/appreciation for...

RESPONSE

- You're very welcome.

- You're entirely welcome.

- Delighted to have been of assistance.

- It was the least I could do.

- You would have done the same in my position/ place/. I'm sure.

- Don't mention it.