WHAT SEPARATES PEOPLE IS NOT COUNTRY BORDER, BUT LANGUAGE.
TALK TO THE INTERPRETER BEFORE USING HIM. IT IS FREE.
I provide translation and interpretation services between English and Chinese Mandarin. Translation always involves two languages. However as a customer, you usually only know one of them. Then how do you know the interpreter or translator you're about to hire is reliable?
I'm a native Mandarin speaker, so I assume there would be little concern regarding my Mandarin capability. Then, if you're an English speaker, all you need to do is to verify is my English proficiency.
HERE'S THE CONVENIENCE I CAN BRING ABOUT TO YOU.
Before you make your decision to hire me or not, I will give you sufficient opportunity to evaluate my English. You may talk to me, write to me, or even meet me, until the moment you can make up your mind. Until then, you don't need to pay me anything. In other words, no matter you eventually use me or not, you don't need to worry about cost in the process of evaluating my English proficiency. Actually, you're more than welcome to evaluate my English, because it always gives me a helpful feedback and therefore always be positive to my linguistic pursuit.