@Tina7872 What sort of information do you expect to be available about a guest? Really, all we have available to go on is any reviews they might have, whatever profile write up they have bothered to do (and most don't write anything there at all) and the way they communicate with us in messages and answer any questions we may put to them.
And yes, you can cross-reference to see what sort of reviews they have left for past hosts, but just because she didn't leave a review for her past host doesn't indicate a scam. Some people, both hosts and guests, just don't leave reviews, or miss the review deadline.What does the one review she has say?
As always, follow your gut. When hosts have an intuition about something, it usually proves to be correct.