Try changing the beginning of your method from:
public static void CalculateTotalCost()
{
retry:
to:
public static void CalculateTotalCost()
{
string input;
retry:
Also, please don't use goto
.
There are much better ways.
Try using a loop:
string name = null;
while (name == null)
{
Console.WriteLine("Please enter meaningful information");
string input = Console.ReadLine();
switch (input)
{
case "Teotihuacan":
name = input;
break;
default:
break;
}
}
Console.WriteLine($"You selected: {name}");
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