Why are the Meta ads not filling tables?

They do not fill tables if they advertise the shift that is already full, or a dish that is not served, or a radius that does not reach the door. They fill the gap only if they ask for that gap and someone replies. Compare the ad’s shift with the empty shift in the book. The ad asks for Saturday night, which is already full, and Tuesday stays empty. The ad rewritten for the shift that is short, with the photo of that dish.