public static void Main(string[] args)
        {
            var io = new ConsoleIO();
            var p  = new Solution();

            var addUser = "******";

            while (addUser == "Y")
            {
                Console.WriteLine("Would you like to add a user ( Y or N )?");
                addUser = Console.ReadLine().ToUpper();
                if (addUser == "Y")
                {
                    Db.people.Add(p.ReadPerson(io));
                }
            }

            var goSearch = "Y";

            while (goSearch == "Y")
            {
                Console.WriteLine("Would you like to find a particular registered user (Y or N)?");
                goSearch = Console.ReadLine().ToUpper();
                if (goSearch == "Y")
                {
                    Console.WriteLine("Enter the name of the user you would like to find.");
                    var search = Console.ReadLine().ToUpper();
                    foreach (var user in Db.people)
                    {
                        if (user.Name.Contains(search))
                        {
                            Console.WriteLine("Result:");
                            p.WritePerson(io, user);
                        }
                    }
                }
            }

            var seeUsers = "Y";

            while (seeUsers == "Y")
            {
                Console.WriteLine("Would you like to see registered users (Y or N)?");
                seeUsers = Console.ReadLine().ToUpper();
                if (seeUsers == "Y")
                {
                    for (int i = 0; i < Db.people.Count; i++)
                    {
                        Console.WriteLine("Person " + (1 + i) + ":");
                        p.WritePerson(io, Db.people[i]);
                    }
                }
            }
            Console.Read();
        }