public void Start()
        {
            do
            {
                Console.WriteLine("What would you like to do?");
                for (int i = 0; i < options.Length; i++)
                {
                    Console.WriteLine($"[{i}] - {options[i]}");
                }
                userInput = Console.ReadLine();
                switch (userInput)
                {
                //Exit
                case "0":
                    break;

                //Create a brewery
                case "1":
                    string        breweryId = Guid.NewGuid().ToString();
                    Brewery       brewery   = GetCreatedBrewery(breweryId);
                    User          manager   = GetCreatedManager(breweryId);
                    ManagersJoint managers  = new ManagersJoint()
                    {
                        ID        = Guid.NewGuid().ToString(),
                        BreweryID = brewery.ID,
                        Brewery   = brewery,
                        User      = manager
                    };
                    adminService.AddBreweryManager(managers);

                    break;

                //Get managers
                case "2":
                    Console.WriteLine();
                    Console.WriteLine("Here is a list of all managers:");
                    foreach (var mgr in adminService.GetAllManagers())
                    {
                        Console.WriteLine($"{mgr.FName} {mgr.LName}");
                    }
                    Console.WriteLine();
                    break;

                default:
                    Console.WriteLine("Invalid Input");
                    break;
                }
            }while(!(userInput == "0"));
        }