Can any hobbyist recommend one or more good escort
agencies in Chicago, with a good selection of
providers, available on short notice for outcall
near the O'Hare airport hotels?

I frequently make short trips to Chicago, and
rarely have time to make plans ahead of time.

If they take credit cards, that is a plus.
Flat rate and web site with pics of providers is best.

(I found a good agency in Detroit, American
Beauties. Good selection, flat rate, 4 or 5 providers
on schedule most nights.)