In medium saucepan saute onion, celery and mushrooms in margarine for 2 to 3 minutes over medium high heat.
Add chicken strips and sage and cook for 5 to 7 minutes more.
Pour in cooking wine and cook until almost no juice left.
Mix whipping cream with flour and pour into saucepan.
Let sauce thicken (2 to 3 minutes) then season with salt and pepper.
Serve over cooked egg noodles.