Hi [First Name],
I've reached out a few times about [topic] without hearing back, which usually means the timing isn't right — so this is my last note on it.
I'll close the file on my side. If [problem] climbs back up the priority list, my door's open and I'll pick it up exactly where we left off.
Thanks for the conversations along the way, and good luck with [their project or quarter].
Best, [Your Name]
