Well what I know of the Kingdom of Saudi Arabia, dating is not an option, so I imagine you will be on a short holiday in Vienna and hope to have a friend to meet you there....
Since ladies will need to either travel or live there, maybe you should be contacting local ladies there, sending flowers, but I think most will be wary, knowing that usually 2 year contracts in Saudi means rather a long time before you would meet again, if you both wanted too.
So certainly focus on ladies in Vienna....add some real photo's and share some of your interests.....
Niah