You’re right, StarDreamer - it’s a different usage.
VS, in MissA’s scenario, asking for a so-called ‘cis’ woman would not solve the problem, as she might be happy to speak to a transman or a female-bodied ‘gender-neutral’ person, neither of whom would identify as ‘cis’, and might be offended to be excluded. She might also prefer a feminist who would understand her fears of talking to a male (however he ‘identified’) and she might not answer to ‘cis’ either.
When ‘woman’ meant ‘adult human female’ she could just have asked to speak to a woman, and be done with it. She might have got someone called Geoff with a shaved head, an elfin goth called Star with their hair in their eyes or a matronly Gladys in a floral dress and cardigan, but she’d know she was speaking to a woman, which is what she asked for.
Complicated, isn’t it?