Block tickets are hold tickets that have not been paid for. An itinerary, marily in that the former has already been paid for, while the latter has not. dummy ticket, or airline reservation are other terms for a block ticket. The block ticket contains the passenger's complete name, the origin and destination, and all other flight information. A confirmed flight ticket and dummy ticket differ; you can verify the validity of the PNR (booking reference number) that comes with a block ticket by visiting the airline's website.