I know we are supposed to cancel a flight if we end up not being able to take it. However, as far as I can tell, once you have flown one leg of a two-leg flight, it is impossible to cancel the second leg.

I tried online chat. I tried talking to the staff at the airport (both boarding gate and at the check in desk). I tried the app.

I don’t want any money back or anything, I just don’t want to get flagged as a no show.

I guess the work around is to just always book two one-way tickets instead of one one-way ticket with two legs.