YOU SAID:

I have to go real quick we are at a rest stop

INTO JAPANESE

私は本当に速く行かなければなりません私たちは休憩所にいます

BACK INTO ENGLISH

I have to go really fast we are in the rest area

INTO JAPANESE

私たちは休憩所にいるので本当に速く行かなければなりません

BACK INTO ENGLISH

We are in a rest area so we have to go really fast

INTO JAPANESE

私たちは休憩所にいるので、本当に速く行かなければなりません

BACK INTO ENGLISH

We are in a rest area so we have to go really fast