JetBlue sells a non-refundable ticket to John Rogowski. John can, for a change fee of $250, rebook his flights should he be unable to use the ticket purchased. If he does not change their tickets before the flight, the cost of the ticket is forfeited completely (this is called breakage). If a ticket is sold on May 1st, 2019 for a flight on July 1st, 2019, when can JetBlue recognize revenue for tickets if the customer postpones the flight until August 15th, and pays an additional $300 (change fee and increased travel costs)