Hi Sandy, when I checked with Pine Courts last year, they told me:
If there are weddings at both Mandarin Court and Pine Court - Mandarin Court use that reception area, Pine Court's reception will be inside the restaurant.
If only Pine Court has wedding - Pine Court can use the outside reception area.
It means Mandarin Court has priority for that reception area, but better check with them again how is it now, as i enquired last year.