Untitled

Return value of parameterized methods?
bool inputOk = ReadAndValidateInput(out customerName, out seatPrice);

private bool ReadAndValidateInput(out string name, out double price)

double discount = 0;

if(ReadAndValidateInput(customerName, seatPrice, out discount))
{
   //do something with discount. You know that input was valid
}
else
{  // do not touch discount. User has not entered valid values
}

string name;
double price;
bool inputOk = ReadAndValidateInput(out customerName, out seatPrice);