Written or said

I just mentioned would be attending a meeting with OMF next week,without writing down the dates to Rev. Lo. He mistook my words and thought I was absent today for the meeting.

It makes me think that writing down dates for other's understanding is important.
A memo helps fix our too loaded messages in our head.I seldom like to jog down message,just pass it on and that's all.Henceforth,to help myself as well as others,I need to form the writing habit.