Study the following dialogue to express gratitude.
Bob: Bob, is that my pen on the chair?
Betty: No, that's my pen.
Bob: Do you know where my pen is?
Betty: Yes, it's in the drawer.
Bob: Um...that's right. Thanks so much.
Betty: You are welcome.
Expressions of Gratitude
Thank you very much.
Thanks a lot.
Thanks for everything.
Thanks for your help.
Don't mention it.
Not at all.