C# Fundamentals - Hotel / if statement

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

namespace ConsoleApp9
{
    class Program
    {
        static void Main(string[] args)
        {
            string month = Console.ReadLine();
            int nights = int.Parse(Console.ReadLine());

            double studio = 0;
            double doubleRoom = 0;
            double suite = 0;

            if (month.Equals("May") || month.Equals("October"))
            {

                studio = 50;
                doubleRoom = 65;
                suite = 75;
                if (nights > 7)
                {
                    studio = studio - (studio * 0.05);
                }

            } else if (month.Equals("June") || month.Equals("September"))
            {
                studio = 60;
                doubleRoom = 72;
                suite = 82;
                if ( nights > 14)
                {
                    doubleRoom = doubleRoom - (doubleRoom * 0.10);
                }

            } else if (month.Equals("July") || month.Equals("August") || month.Equals("December"))
            {
                studio = 68;
                doubleRoom = 77;
                suite = 89;
                if (nights > 14)
                {
                    suite = suite - (suite * 0.15);
                }
            }
            double studioTotalPrice = nights * studio;
            double doubleRoomTotalPrice = doubleRoom * nights;
            double suiteTotalPrice = suite * nights;
            if (month.Equals("October") && nights > 7 || month.Equals("September") && nights > 7)
            {
                // one night is free
                studioTotalPrice = studioTotalPrice - studio;
            }
            Console.WriteLine($"Studio: {studioTotalPrice:F2} lv.");
            Console.WriteLine($"Double: {doubleRoomTotalPrice:F2} lv.");
            Console.WriteLine($"Suite: {suiteTotalPrice:F2} lv.");
        }
    }
}