The venues I have sympathy for can be counted on a few fingers. Most venues and venues owners are trash and pay accordingly. I never feel bad about canceling short notice. They do it to me all the time. Zero sympathy for whatever dumb venue that is.
I'll paraphrase my feelings "while we cannot offer your venue a guarantee in terms of monetary compensation, hosting an Oliver Anthony show at your establishment is a great way to gain exposure for your music club or venue."