Thank her and send her away

You step back.

"Thank you for the message but I don't intend to still be here for dinner. You are dismissed."

She looks disappointed and curtsies again.

"Another time perhaps," she says, turning and walking back towards the kitchen. As she walks her hips sway. You can't help but to watch her ass and wonder if you'd made a mistake. You consider calling her back but decide against it, and instead begin thinking about what you're going to do now.