How do you say hello madam in French?

Bonjour madam or Salut madam. The difference is that "bonjour" is a polite and formal greeting as you would say "salut" to a friend or close family member. Fro all those non-French speaking people you say "bonjour" as bonn-jour say your "j" as a soft "j" and you say "salut" as: sall-oo. Bonjour Madamoiselle