Hi Wael,
Are you sure they are avoiding conversation with you because you are from Syria? My advice would be to start there - ask people why they don't continue talking to you. Of course, not everyone will reply, but you never know, you might get some honest, constructive feedback and find it has nothing to do with your nationality, but is because your English level, or interests are incompatible.
I sincerely hope you find some language partners soon.
Rachel