If its a recent client that you’ve seen in the past few months, I may design a program for them till they can meet with a new trainer. But I only do this for clients I’ve trained or have recently trained to tide them over till they find someone else.
In the case of someone who only wants a program design, I do the same as the others, I charge for 3 sessions. Once for an assessment, once to go over the program and review form and another for program design. I also make sure to follow up with the client to see how the program is working.