This is a 1970’s Kenner doll named Dusty although I believe in Australia she was marketed as Jenny the Jet Setting Qantas Hostess as I had one as a child.

Her condition is very good but she does have the usual melting of the vinyl in the joint areas as most of these dolls got for some reason. As you can see in the photo it has melted onto her underwear but all her joints still are moveable. She has the twist and turn waist that moves well and also bends well at the knees with a 2 click mechanism in them.

I believe her clothing is possibly original but I couldn’t find one the same in this particular outfit so can’t be 100% but know her undies are original for sure.