Thanks again for all of your replies, this has been really interesting.
Will you be joining us for lunch today?"
"Will you be joining us for coffee?"
Gives me a mental picture of galley full of first/business pax, chatting, drinking etc etc, while F/As are sitting around as if at large company party. I just find that wording so funny. Sounds as thoug you are all asking if they want to have lunch with you. Lol.
have you ever had someone think that's what you mean?
Sky