My dad was standing and chatting with the F/O
Yo uhave your age in your profile as 96. Your Dad still alive?! I am very impressed.
You do not need to buy your own headset for flying training. Your school can loan you a pair. You may wish to buy your own pair though (for hygene reasons) - I suggest you try on a few different ones and see what feels best.
Make sure you adjust the headset that you try on. Any headset is going to feel a little strange to start off with, but you do get used to it. If your after comfort, the David Clark X11 are very comfortable indeed - but they are very expensive (£500) and they don't block out much noise.
You say you have a visitors visa for the US - is that where you are planning on doing your flight training. I see that you are based in Turkey, this could possibly be a problem for you in getting a M1 visa for flight training. I don't know.
Good luck in your flying training!
T.