Hey [First Name],
I was just running through my ___ pipeline and cleaning up my backlog of guest contributions. Since we haven’t been able to get your ____ over the past few months, I’m going to go ahead and assume you won’t be able to contribute the discussed _____?
If so, no worries. Just let me know so I can comfortably remove it from my list. If you still want to contribute, I’m also happy to keep it on my list and discuss how we can get it completed in a manner that suits your schedule