I would say that hardly anyone would understand what you meant if you used 'revert' in that way. The standard meaning of 'revert' is 'to return to a previous state'. The legal sense, according to the AHD, is to return to the original owner. Thus, a court may decided to revert stolen property to the original owner even though the property has gone through a number of otherwise perfectly legal transferences of ownership, e.g., a work of art stolen by an invading army, recovered by liberating troops, and donated to an art museum.

Use 'reply' if being formal, or 'get back to you' if informal.