I wish to make a short video wishing my girlfriends parents a happy 30th wedding anniversary. The originally come from Hong Kong and speak Cantonese. I haven't met them yet, and my girlfriend told me I would probably call them "uncle" and "aunt".
What I want to say is something along the lines:
"Dear uncle and aunt, congratulations on your wedding anniversary".
What I have so far is:
"Dear uncle and aunt,
I'm not Asian myself, so I would appreciate if you could help me make a sentence. I'm in doubt about the following:
- Can I improve the sentence/is it respectful?
- What is the best way to find out how it's pronounced in Cantonese?
Thank you very much.
EDIT: Here's some context: They know my name and I have sent them two postcards before.