Hi Janet
Sorry to hear the info you have had from us isn't very clear - i'll look into that.
Re the luggage, as an average most airlines allow 20kg per suitcase. All flights to long haul destinations, such as America, allow 2 pieces of luggage per person each weighing 20kg - so that's 40kg of space for pleanty of outfits and shoes!
Hope this helps and enjoy America's Golden West!
Regards
Cheryl, your editor