Originally Posted by
nexusCFX
I think in this case it's better to book with a dummy date for the second segment, and then when the calendar opens for your desired date, change the date of the second segment which is cheaper than a destination change, $40 at most.
Good suggestion. OP should make sure HKG is ticketed as a stopover (can be requested specifically) if the 2 flights are within 24 hours.