Dear Miss Mary,
You're from the part of the country that understands how I was raised up to be respectful, and why I will address you as Miss Marry, though it might be a bit premature to do so. It's all I've got not knowing, nor needing to know, your family name.
Besides, people can be boring, but not names. You don't sound boring at all.
I'll ask Miss Kaycee and reference/include your message.
Respectfully,
CG Bob