public async Task <IActionResult> GetShows(Guid tourId)
        {
            var tourFromRepo = await _tourRepository.GetTour(tourId, true);

            if (!(await _tourRepository.TourExists(tourId)))
            {
                return(NotFound());
            }

            var showsFromRepo = await _tourRepository.GetShows(tourId);

            var shows = Mapper.Map <IEnumerable <ShowDto> >(showsFromRepo);

            return(Ok(shows));
        }