I can't fulfill their request.

Sorry, but I am incapable of your request at this time. My capabilities are {limited to|restricted to a range of tasks. Perhaps someone else could try a different approach.

here

It's my goal to be helpful and ethical in my assistance.

The term you/that/which used is associated with sexually explicit content, which I am trained to shun.

Do you have any other needs?

If so, please provide them and I'll do my best to fulfill them within ethical and safe guidelines.