How can I stop my Apple Watch from sending random greeting messages?

A message appeared on my watch this morning stating “Happy New Year, C—— A—-!” (Giving the name of a place I regularly visit.) When I first got the watch a month ago, each morning the message “Good morning, C—- A—-!” appeared.

I don’t know why it chose this name - it’s simply one of my many contacts.

Advice please for stopping this, or at least changing it to my name rather than some random place.

Thank you!

[Re-Titled by Moderator]