"Kwa heri Esther na Rehema"

Translation: Goodbye Esther and Rehema

[flor_jasmin]

Shouldn't it be kwa herini since it's more than one person leaving?

[Gazelle1596]

That would be grammatically (more) correct, yes! :)

[Mr.Kasanje]

"Bye", and "Goodbye", are synonyms, extremely common, and interchangeable. "Bye" should be an acceptable response.

[Gazelle1596]

report it
(although because of heri meaning "luck/blessedness" I personally would prefer to keep the good in to carry some of the meaning)

[Agneduo]

Then again, the "good" is always implied in the phrase in English, it adds no extra meaning and thus a language learner won't feel the difference you want it to carry.

[Noriko863898]

Actually some questions before this in this Practice segment accepted "Bye" as a correct one. It should be consistent.