If you want to self fly hire for only 2 hours that would be next to impossible. If you were keen to fly a Squirrel (A-star in your language) or an EC-120 with an instructor I'm sure Garden City Helicopters could help you out. If you want to fly for 2 hours I'm guessing you want to go into the Southern Alps? That's not a place for someone with only 500 hours over 13 years for a start, with an instructor that would be an amazing experience though. Sorry to be so negative and I hope someone else can help