We were supposed to fly on a delayed CX 841 on Oct 7th. While on the way to the airport received a text message that the flight was delayed and scheduled to depart at 1:20AM. Shortly after another text message with the new departure time at 10PM. We were booked in F. Upon arrival at the airport we were booked on ANA in F to NRT and then on NW in C to HGK. There was no availability in C on CX at that time. Once we arrived in NRT we were rebooked to CX 505, which was subsequently canceled (first delay 2/2 cleaning, then engine problem, then air conditioning problem). We got on the plane at 8:40pm, left the gate, but came back shortly after due to recurrent AC problem. Got off the aircraft and boarded another one at 10:30pm. Left the gate again, but returned shortly after 11pm due to curfew at the airport. Went to hotel and departed the next day at 11am. Unbelievable!!! Never CX again!