public List <Rider> ShowAllBookingHelper(User user, ref List <int> offerIds)
        {
            var riders = Dbrr.GetRidersByUserId(user.Id);

            foreach (Rider rider in riders)
            {
                offerIds.Add(rider.RideId);
            }
            return(riders);

            //var Rides = Dbr.GetRides();
            //var filteredRides = Rides.Where(r => r.Riders.FirstOrDefault(p => p.Id.Equals(user.Id)) != null);
            //foreach (Ride ride in filteredRides) {
            //    Rider rider = ride.Riders.FirstOrDefault(p => p.Id.Equals(user.Id));
            //    offerIds.Add(ride.Id);
            //    riders.Add(rider);
            //}
        }