I'm not a candidate (wrong boat), but if I were I'd want to know more info. Do you just want to trade
a meal for a day of sailing on the bay, or do you have other reasons? Why an older couple? Why 35' plus? What "story" do you want to hear. Frankly, the "no strings" sentence is a bit creepy.
Looking through your posts so far, you seem harmless enough and mostly curious, but I think you could frame this request better. I also suggest asking more questions here on the forum of the kind you'd like to have answered if your request was granted.
Best of luck in your search, whatever it is you're searching for.