Hi everybody.
I don't think I will be able to make it on time for a meeting tomorrow, but that's okay because I don't think that there really is anything that we need to discuss right now.
If you do have something that you feel is important and needs to be discussed, by all means, please say so. (I will make an effort to be there if necessary)
Otherwise, there will be no meeting.
Have a pleasant <time-of-day>!
Max