Turn on/off/schedule times when prospects can book appointments. I was out of town this weekend and didn’t want to check my email and no one to delega?

Turn on/off/schedule times when prospects can book appointments. I was out of town this weekend and didn’t want to check my email and no one to delegate to. I knew the leads would be captured, but would be better if prospects see a note: “Scheduling not available currently. Please check back 5/27/14.” I think this is better than having all their choices declined.