How do I report ESPP sale without a form 3922

I sold ESPP shares last year that were purchased back in the 90's. I don't have the form 3922 that was snail mailed to me back then. The current transfer agent who manages the stock doesn't have the form either. I'm stuck on my Turbo Tax page. I can't get past it. It's asking for a lot of required information to be populated like first day of offering period, market price on grant date and market price on purchase date, etc. Is there a way to complete my tax submission without all these specific details?