Restaurant Discounts

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace app1
{
    class Program
    {
        static void Main(string[] args)
        {
            int people = int.Parse(Console.ReadLine());

            string hallName;
            string package = Console.ReadLine();

            double totalSum = 0;
            double price = 0;
            double discount = 0;

            if (people <= 50)
            {
                hallName = "Small Hall";
                price = 2500;
                Console.WriteLine($"We can offer you the {hallName}");
            }
            else if (people <= 100)
            {
                hallName = "Terrace";
                price = 5000;
                Console.WriteLine($"We can offer you the {hallName}");
            }
            else if (people <= 120)
            {
                hallName = "Great Hall";
                price = 7500;
                Console.WriteLine($"We can offer you the {hallName}");
            }
            else
            {
                Console.WriteLine("We do not have an appropriate hall.");
                Environment.Exit(0);
            }
            //Packages
            if (package == "Gold")
            {
                price += 750;
                discount = 0.10;
            }
            else if (package == "Normal")
            {
                    price += 500;
                    discount = 0.05;
            }
            else if (package == "Platinum")
            {
                price += 1000;
                discount = 0.15;
            }
            totalSum = price - (discount * price);
            Console.WriteLine($"The price per person is {totalSum / people:f2}$");
        }
    }
}