public void InsertCustomer()
{
Customer customer = new Customer();
DBcontroler DB = new DBcontroler();
string firstName = InputCustomer("first name");
Console.Clear();
string lastName = InputCustomer("last name");
Console.Clear();
string phone = InputCustomer("telephone number");
customer.FirstName = Customer.ChangeName(firstName);
customer.LastName = Customer.ChangeName(lastName);
customer.Phone = Customer.SplitPhoneNumber(phone);
DB.InsertCustomer(customer);
Console.WriteLine("The customer was added to the system!");
Console.ReadKey();
}
