What you need to know about Air New Zealand mobile apps
There is an iOS app from Air New Zealand which will work on your iPhone, iPod, or iPad.
Airpoints members will also be able to use the app to manage their profile, view account activity, and more right from the app.
Air New Zealand has an Android app that works with most Android tablets, phones, and some Android Wear devices. Perhaps standard practice these days, the Android app offers the same functionality as the iOS app from Air New Zealand.
Also take a look at Air New Zealand's website by clicking here — you should be able to do what you need there.