Advice - I have a OC7 that expires in early Aug. Was planning on using it the NC5 in June, but plans have changed and would like to use it for late Aug (after expiration date). Should I 1) book for something before the expiration to convert the cert and hope the expiration is extended and then rebook for Aug trip or 2) ask the rep to convert and hope I can just book for the trip I want there and then? What's the easiest way to do this?