/// <summary> Процесс ресторана </summary>
public void Process(IClient client, IWaiter waiter)
{
client.Hello();
waiter.Hello();
var menu = waiter.GiveMenu();
var order = client.Order(menu);
var food = waiter.ExecuteOrder(order);
client.Thank();
client.Eat(food);
client.AskAccount();
var account = waiter.GiveAccount();
client.PayAccount(account);
client.Goodbye();
waiter.Goodbye();
}