public IActionResult Post([FromBody] StewardessDTO stewardessDTO)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            try
            {
                stewardessService.CreateEntity(stewardessDTO);
            }
            catch (ValidationException e)
            {
                return(BadRequest(new { Exception = e.Message }));
            }

            return(Ok(stewardessDTO));
        }