Client Wants to Add AI Detail to Photos

Hi all, my wife and I have started working as a photographer and stylist team and I'm looking for advice on how to respond to a client request to add Photoshop AI greenery to some trees in the background of a recent hotel shoot we did for them. On one hand, I want to make them happy as they are currently our only interior client with some beautiful properties to help build our portfolio, on the other, I feel weird about using AI to create an environment that simply did not exist after we've delivered the photos (which we all received well).

Mind you, they specifically requested shots with a waterfront park view, and scheduled the shoot in early April, so obviously, there would be no greenery yet. I am always happy to do a round of additional edits if requested as part of our agreement.

If the answer is shut up and just do it, cool. But we're still getting our feet under us, working with this specific client, so I'm wondering where this community stands and how you might respond.