Hi Dareios,
Are you familiar IPA phonetics? If so, I can teach you how to pronounce the farsi phrases that you have translated into English.
My name is Dareios: Esmeh man Dareios ast. (The farsi word "man" is pronounced very similar to the English word "man" and the sound "a" in "ast" is pronounced like the sound "a" in apple)
My city's name is Courtenay: Esmeh shahreh man Courtenay ast.
What is your friend's name?: Esmeh Du:stet chi hast?
Your father's car is very beautiful: mashineh pedaret kheily khoshkeleh.
Please feel free to drop a message if you need any further help!