Originally Posted by RealHJ

Very true. Unless you may wish to cancel the trip later (in which case you do NOT want it reticketed, as once the cert is closed it is gone for good), don't let the agent go until you have received the new TICKET (not itinerary, but TICKET with the ticket number) in your e-mail and can verify on the receipt online and see the new ticket # and that it is ticketed in O. Getting it reticketed prior to flight, even if not day of flight but a few days prior, can be a very time consuming and frustrating experience.