YOU SAID:
Will you be my date to the dance?
INTO JAPANESE
あなたは私のダンスデートですか?
BACK INTO ENGLISH
Are you my dance date?
INTO JAPANESE
あなたは私のダンス日ですか?
BACK INTO ENGLISH
Are you my dance day?
INTO JAPANESE
あなたは私のダンスデーですか?
BACK INTO ENGLISH
Are you my dance day?
That didn't even make that much sense in English.