What is the exact relationship most likely between the two speakers?

W: It is so nice here, so restful. I have never been here before.
M: No?
W: I think I shall come and sit here sometimes.
M: Yes?
W: Do you lock the hut when you’re not here?
M: Yes, your Ladyship.
W: Do you think I could have a key too, so that I could sit here sometimes? Are there two keys?
M: Not as far as I know, there’s none.
W: Couldn’t we get another key?
M: Another !
W: Yes, a duplicate.
M: It happens Sir Clifford would know.
W: Yes! He might have another. Otherwise we could have one made from the one you have. It would only take a day or so, I suppose. You could spare your key for so long.
M: I cannot tell you, your Ladyship! And I know nobody who makes keys round here.
W: Very well! I’ll see to it.
M: All right, your Ladyship.
W: Good afternoon !
M: Afternoon, my Lady !