Just another nitpick: "は" is pronounced as "wa" not "ha" when it is used as the topic marker, as in the well-known greeting "Konnichiwa".
Kono(this) nichi(day) wa(is the topic)
If I'm at work, I usually prefer to say "morning" without the "good": if it were a good morning, I wouldn't be at work...
今日はご機嫌いかがですか?
if you're a rich girl at a private school you can just say ご機嫌よう
[0] https://en.wiktionary.org/wiki/ローマ字
[1] https://en.wikipedia.org/wiki/Hepburn_romanization#Particles