Saying, “Yes.”
When you agree to satisfy a request, you can say, “Yes, I’ll do that.”
You can also say, “Yes, I’ll do that. Here are all the special arrangements I’ll make in order to meet your request...”
And then you can explain the logistics, how you’ll coordinate the details, and the scheduling changes that will be required.
That second method is cousin to giving someone a gift and then telling them how much you paid for it.
Don’t list your efforts as though you’re investing in the level of anticipated thanks.
Most of the time, it’s best to just give the gift.