I feel this is the wrong business direction. If you do it well, at most you'll only save on the salary of an administrative assistant, but they actually want much more, and this small improvement won't attract their attention.
I get the concern if the value is framed as “replacing an admin assistant”, but for many founders, the real win isn’t salary savings, it’s eliminating context switching, follow-ups, and mental overhead around coordination. As well as eliminating the mistakes that can be made by humans. Even small logistics can disproportionately drain attention. If done well, this is less about cost reduction and more about reclaiming focus and execution speed.