public void RunSim()
{
string buyChoice = "1";
while (buyChoice == "1")
{
Console.Clear();
UserInterface.WelcomeMessage();
List <Coin> deposit = customer.ChooseCoinsToDeposit();
string choice = UserInterface.ChooseSoda();
sodaMachine.Execute(customer, choice, deposit);
buyChoice = UserInterface.AskBuyAnotherSoda();
}
Console.ReadLine();
}