YOU SAID:
Oh, hello? So how old are you again?
INTO JAPANESE
あ、こんにちは?それでまた何歳ですか?
BACK INTO ENGLISH
oh hi So how old are you again?
INTO JAPANESE
やあ、また何歳ですか?
BACK INTO ENGLISH
hi again how old are you?
INTO JAPANESE
こんにちは、あなたは何歳ですか?
BACK INTO ENGLISH
hello how old are you
INTO JAPANESE
こんにちは、あなたはいくつですか
BACK INTO ENGLISH
hello how old are you
That didn't even make that much sense in English.