Can tell almost nothing from this. She has closed eyes and is near what looks like a male veiled and in an unsuitable enclosure, but she isn't dead. Talk to the seller and make sure you can have guarantee anbout care for her.
She looks to be in rough shape, eyes appear to be closed, and the container/fake branch looks dirty. Poor thing.
I have not had good experiences with reptile shows in our area.. It seems some of the larger shows have great breeder presence, and I hope one day to attend, but the ones I have encountered have reptiles in poor conditions. If there are any chams, they have been in poor health. My first chameleon was purchased at a dingy show, he was sick, and lasted a rough 3 weeks of vet bills before passing. (RIP Gus)