I did it in ORD back four years ago. Had a flight with two fellow UofR students, a female and a male, as they were connecting to CX807 to HKG. I was going to pick up my parents from CX806 on the same day. Getting to know my fellow students was great, and it turned out I guested them into the lounge and had lunch because I was waiting for my parents anyway. It also turned out the CX806 was delayed for 12-13 hours, so their CX807 was also delayed as much. They were both provided a hotel, and I had to help them go through the delays as basically I had to wait for my parents. Turned out to be good younger brother and sister.