What are they talking about?

M: That’s a nice dress you’ re wearing.
W: Thank you. My father gave it to me as a birthday present. He knows red’ s my favorite color.

W: How long have you been a lock-keeper, Mr. Fiddler?
M: Oh dear, let me think... umm... I started when I was 25, so that means I’ ve been at it for uh twenty one years now. Yeah, that’s it—three years on the Oxford Canal and the past eighteen years here on the Reading Stretch. Twenty-one years in all.
W: Oh, really! That’s incredible.