They do their best to find a date that works for you.
You are 100% responsible for your partner. Airfare and food.
2 months after the interview, you should have an answer.
Suggest you start doing a little searching, all your questions have been
answered before in this forum, and this is not a North American situation
you are considering.
It requires much investigation in order to really understand what you are
truely about to get yourself into......Not doing your homework here can have
very bad results.