According to booking number XXXXXX, please be informed that the flight changes can be made via Manage My Booking, at all our Sales Office/Airport Sales Counter and through our call centre. The change need to be done more than 48 hours before your departure flight time. However, for any flight changes (date/time) is subject to fees, flight change will subject to Fare different + Change Fees. The fare different is driven by demand which is change from time to time.