This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
Do we need to keep track of what seats a user booked? I am just deleting them from the db if all goes well (locks are cool and the seats are there). So my answer would be no, but I would like to hear what others have done.