public string DeleteDestination()
        {
            DataAbstractionLayer dal = new DataAbstractionLayer();
            bool isValidId           = Int32.TryParse(Request.Params["DestinationID"], out int destinationID);

            if (isValidId)
            {
                dal.DeleteDestination(destinationID);
                return("Removal has been successful!");
            }
            return("Destination ID is not valid!");
        }