I needed to fly from OGG - LAS and due to seat sales on certain routes, it was 65% cheaper to buy 2 tickets.

#1 - OGG - LAX - DEN - YYC
#2 - LAX - LAS

I just flew the OGG - LAX leg and am waiting to now jump on the LAX - LAS flight and will drop the LAX - DEN and DEN - YYC flights. I know the LAX - DEN flight is overbooked so I can help the airline by letting them know in advance that I won't be getting on the other 2 flights. However, will either letting them know or simply no-showing those flights affect me collecting my miles on the OGG - LAX leg that I flew on UA but credit to my AC account?