/**
     * Delete Hotel by identifier.
     * @param int: $id Hotel identifier
     * @return bool: true on success, false otherwise
     */
    public function delete($id) {
        $sql = '
            UPDATE hotels SET
                last_modified_on = :last_modified_on,
                deleted = :deleted
            WHERE
                id = :id';
        $statement = $this->getDb()->prepare($sql);
        $this->executeStatement($statement, array(
            ':last_modified_on' => self::formatDateTime(new DateTime()),
            ':deleted' => true,
            ':id' => $id,
        ));
        return $statement->rowCount() == 1;
    }