Korean Air will begin migrating Asiana Airlines reservations and flight numbers to its system in November ahead of the carriers' scheduled full merger on December 17. The phased REAC (re-accommodation) process will run from November 2 through December 3, replacing Asiana's "OZ" flight code with Korean Air's "KE" designation for existing bookings with departures on or after December 17. Reservations and ticketing data will be transferred sequentially to reduce disruption, with customers receiving updated information through KakaoTalk alerts, text messages and email. Korean Air will also provide integration-related FAQs on its website and mobile app. Asiana shareholders approved the merger in August, completing a process that Korean Air has pursued for nearly six years. Once the integration is complete, Korean Air will operate as a single carrier and Asiana Airlines will no longer operate as a separate brand.