What should be my flight booking if I want spend few days in HK

Hi! I'm Filipino from Dubai. I want to visit HK for 6-7 days before going home to Manila.
My company book a ticket for me as DXB/HKG/MNL. HK as stop over only. What should I do? Who shall I inform that I will be staying in HK for few days. Do I need to have 2 tickets? DXB/HKG & HKG/MNL?