Info screen. You should only be entering your sons information and leaving rr# blank.
First step is selecting flights, select the ones you want. Then next step is to enter the passenger info. If your info auto pops into the screen, just clear it all out and enter your son’s info. Leave rr# blank.
Last step is to pay the 9/11 fee $5.60 each way and then you confirm the order and your e done.