Unless you work internally in CX or a FA for that flight, there's no such thing as loading check. But there is availability check

June 29
CX888 W/9 R/2 E/0 Y/0 B/0 H/0 K/0 M/0 L/0 V/0 S/0 N/0 Q/0 O/0
CX830 W/2 R/0 E/0 Y/6 B/4 H/0 K/0 M/0 L/0 V/0 S/0 N/0 Q/0 O/0
CX840 W/5 R/0 E/0 Y/6 B/2 H/0 K/0 M/0 L/0 V/0 S/0 N/0 Q/0 O/0
June 30
CX888 W/9 R/8 E/5 Y/6 B/0 H/0 K/0 M/0 L/0 V/0 S/0 N/0 Q/0 O/0
CX830 W/9 R/0 E/0 Y/9 B/9 H/9 K/0 M/0 L/0 V/0 S/0 N/0 Q/0 O/0
CX840 W/9 R/7 E/0 Y/9 B/9 H/5 K/0 M/0 L/0 V/0 S/0 N/0 Q/0 O/0
cX846 W/9 R/9 E/9 Y/9 B/9 H/7 K/0 M/0 L/0 V/0 S/0 N/0 Q/0 O/0
July 1
CX888 W/9 R/0 E/0 Y/6 B/4 H/0 K/0 M/0 L/0 V/0 S/0 N/0 Q/0 O/0
CX830 W/7 R/5 E/0 Y/9 B/9 H/9 K/3 M/0 L/0 V/0 S/0 N/0 Q/0 O/0
CX840 W/9 R/9 E/9 Y/9 B/9 H/9 K/0 M/0 L/0 V/0 S/0 N/0 Q/0 O/0

July 12
CX845 W/9 R/9 E/9 Y/9 B/9 H/9 K/9 M/0 L/0 V/0 S/0 N/0 Q/0 O/0
CX841 W/9 R/9 E/3 Y/9 B/9 H/9 K/9 M/9 L/0 V/0 S/0 N/0 Q/0 O/0
CX831 W/9 R/8 E/0 Y/9 B/9 H/9 K/9 M/0 L/0 V/0 S/0 N/0 Q/0 O/0
CX889 W/9 R/7 E/8 Y/9 B/9 H/9 K/9 M/0 L/0 V/0 S/0 N/0 Q/0 O/0
July 13
CX845 W/9 R/9 E/1 Y/9 B/9 H/9 K/9 M/0 L/0 V/0 S/0 N/0 Q/0 O/0
CX841 W/9 R/9 E/0 Y/9 B/9 H/9 K/9 M/0 L/0 V/0 S/0 N/0 Q/0 O/0
CX831 W/9 R/7 E/0 Y/9 B/9 H/9 K/9 M/0 L/0 V/0 S/0 N/0 Q/0 O/0
CX889 W/9 R/9 E/6 Y/9 B/9 H/9 K/5 M/0 L/0 V/0 S/0 N/0 Q/0 O/0

Given this is end of June, a high season for summer travels. Your chance are slim...