public void CreateReservation(IList <Site> siteList, DateTime startDate, DateTime endDate)
        {
            DateTime   fromDate    = startDate;
            DateTime   toDate      = endDate;
            int        numOfDays   = (endDate - startDate).Days;
            List <int> chosenSites = new List <int>(); // create a list of ints that will contain the siteId's captured in the foreach loop below

            Console.WriteLine($"{"Site No.",-10} {"Max Occup.",-12} {"Accessible",-12} {"Max RV Length",-15} {"Utility",-10} {"Cost",-10}");

            foreach (Site site in siteList)
            {
                Console.WriteLine($"{site.SiteId,-10} {site.MaxOccupancy,-12} {site.Accessible,-12} {site.MaxRVLength,-15} {site.Utilities,-10} {numOfDays * chosenCamp.DailyFee,-10:C}");
                chosenSites.Add(site.SiteId);
            }

            Console.WriteLine("Which site would you like to reserve? (0 to cancel) ");
            string siteIdStr = Console.ReadLine();

            // make sure user entry is a valid site number, if it is make the reservation and display ID. If it is not, throw exception and return to selection screen
            try
            {
                int siteId = Convert.ToInt32(siteIdStr);
                if (chosenSites.Contains(siteId))
                {
                    Console.WriteLine("What name should the reservation be made under? ");
                    string reserveName = Console.ReadLine();
                    reserveObj.SaveReservation(siteId, reserveName, startDate, endDate);
                    GetReservationId();
                    Console.WriteLine($"Your reservation has been created. Your reservation ID is {reserveId}");
                    Console.WriteLine("Hit enter to continue");
                    Console.ReadLine();
                    return;
                }
            }
            catch (System.FormatException ex)
            {
                Console.WriteLine(ex.Message);
                WriteError("Please input a valid site number");
                return;
            }
        }