Telling someone you're leaving and when you'll be back

Hi, we're house sitting in Costa Rica and the maid here speaks very little English and we speak and understand very little Spanish but I'm learning. Could you please tell me the best way to tell her we're leaving? Does this work? Nosotros estamos saliendo Or is there something simpler or more common we can say? How would we tell her that we'll be back in a couple of hours? Thanks for the help!

Hola B.A. Vamos a salir ahora. Vamos a volver en dos horas. We are going to leave now. We are going to return in 2 hours. Saludos, Rich

Thanks Rich!

Hi Rich, How about "Salimos ahora"???