Dear Dr. King,
I regret to inform you that your dream is not yet achieved. However, I am still committed to fight and struggle for it so that it may yet be reached. Once again thank you for setting the wheels in motion.
With utmost respect.
P.S. If it is not too much trouble, could you channel some of your oratory skills to me for my two interview lectures this week? It never hurts to ask, does it?