public async Task <List <PassengerViewModel> > GetListOfPassengers()
        {
            var data = await _passengerRepo.List();

            return(data.Select(x => new PassengerViewModel
            {
                FirstName = x.FirstName,
                LastName = x.LastName,
                State = x.State,
                Weight = x.Weight,
                Id = x.Id
            }).ToList());
        }