I had the misfortune of having to book an unaccompanied minor plane ticket on Southwest. Instead of giving me the option of entering my daughter's information first, they had me fill out the full payment form THEN asked me if she was flying alone THEN had me fill out her info (a task in itself) THEN had me fill out my credit card info again. Certainly stress inducing and horrible UI.
I had the misfortune of having to book an unaccompanied minor plane ticket on Southwest. Instead of giving me the option of entering my daughter's information first, they had me fill out the full payment form THEN asked me if she was flying alone THEN had me fill out her info (a task in itself) THEN had me fill out my credit card info again. Certainly stress inducing and horrible UI.