switching a ticket for a minor

[username]

If i bought a Northwest airline ticket for a minor who can fly w/o identification,can i use it for another child? when i purchased it, they asked for the gender and age, but the boarding pass made no mention of them, just had the child's name. I'm wondering if perhaps its encoded in the barcode..
Thanks.

[Charles The Govenor]

Is the other kid same gender and around the same age??.

[username]

different gender, 4 and 6

[Charles The Govenor]

you can always just say that the rep didnt hear u and u said a female not a male i dont think you should have a prob.