Hey guys !

I've recently booked my tickets with Cathay,
(SYD->HKG, HKG->SIN, SIN->HKG, HKG->SYD) but silly me I forgot to put in my middle names as I fly domestic a lot within Australia with only my first and last name so I was used to not putting in my middles names when booking flights, but I've never done it when flying internationally, I'm just wondering if that would be an issue ? Anyone experienced this before ? Thank you !