I have an airfrance voucher I want to use; jfk to arn.

I want to fly DL for the TATL flights.

When I sign into my 'Flying Blue' account, it doesn't give me the option to choose how to earn the miles. It seems that it automatically defaults into my flying blue account. Is it possible to book the flight and at the same time indicate that I want to earn skymiles instead of FB miles?

Plus, I have a coupon code from an earlier bump. What are the correct series of #s to put in the requried field?

Thanks!