public ActionResult <IEnumerable <string> > PostBooking(string eventUid, BookingPost bookingPost)
        {
            if (model.GetEventId(eventUid) == null)
            {
                return(NotFound());
            }

            var result = model.PostBooking(bookingPost, eventUid);

            if (result)
            {
                return(Ok());
            }
            else
            {
                return(Conflict());
            }
        }