How do you say goodmorning in Vietnam?

GOOD MORNING, Vietnam! (or as Adrian said it over the radio, "Gooooooooooood Morning, Vieeetnam!) A 1987 Film starring Robin Williams as Armed Forces Radio Disc Jockey Adrian Cronauer. I'll spell it phonetically

To a male: Chow Ahn

Female: Chow Ba

Young woman: Chow koh

It is proper to begin with an 'excuse me:' Sin Loy

Thank you is Caahm Anh