Ken:  Just a brief note to tell you that I have enjoyed our working relationship for the past 16 1/2 years, and to wish you good luck in the future.
Tell Linda I said hello.
December 14 is scheduled to be my last day here.
Sincerely,

Termination
Ken: Just a brief note to tell you that I have enjoyed our working relationship for the past <NUMBER> <NUMBER>/<NUMBER> years, and to wish you good luck in the future.
Tell Linda I said hello.
December <NUMBER> is scheduled to be my last day here.
Sincerely,
tell enjoyed linda said hello relationship past number ken just working december good luck