Hi Karen, I shall always remember my wonderful stay at your home and hospitality you offered me during my visit in Toronto.
I have had such a marvelous time and although I was far from home and it was the first time in Canada I had been abroad, you and your family took me in as though it were my own home. I shall consider you and yours among my kindest and most charming friends.
With any luck, in the not too distant future we shall have the chance to meet again.
Fernando H