literally ' I am good - that you will do this week-end '
Bon voyage alors translates as "fare well, then"
I'm good is translated "je suis bon" in French. (or je suis bonne for a girl)
so, what do I say?
Have a nice weekend!
You would say "Je ne suis pas très bon." in French.
"passe / passez un bon week-end"
"I am good, as well"
(my health is not good) : je ne vais pas bien, je ne suis pas bien
I am good, and you?
"I am happy" in French is said as "Je suis heureux" if you are male, or "Je suis heureuse" if you are female.
je suis un bon mathématicien
Je suis bon. Comment êtes-vous?