This is different than the typical Basia concert. As a public service here is the Nighttown Reservation and Seating Policy:
"We only take reservations by calling Nighttown at 216-795-0550. All seats are General Admission. All seating is based on the time that you arrive for the show and based on how many people are in your party and where we have tables of that size. If you are not at Nighttown by 10 minutes before the show, your reservation may be given away to others waiting for a seat.
We don't use any ticketing agency and as a result the ticket price you see is all we charge, saving our customers excessive fees. All tickets are to be paid in cash."