Contraseña como cadena Ejercicio C# - Curso de Programación C# (C Sharp)

using System;
public class exercise51
{
    public static void Main()
    {
        string user, password;

        do
        {
            Console.Write("Enter a user: ");
            user = Console.ReadLine();

            Console.Write("Enter a password: ");
            password = Console.ReadLine();
        }
        while (user != "user" && password != "password");
        Console.WriteLine("Bye!");
    }
}