My airline does not allow 2 dogs in one kennel,
and neither does NWA.
Check this out from their website
http://www.nwa.com/travel/animals/ca...ts.html#kennel
I would just go with 2 carriers, one for you, one for your daughter.
The only time they allow 2 is when they are puppies under 6 months of age.
I don't want you to show up at the airport un-prepared.