I think he means will the WG reject him, not will he be able to find one!!
Rick
don't worry about it
easiest is to do a walkup - where you simply go to her address. No need to phone ahead, just go there and ring the bell (if the card on her door says "please ring") or wait for her (if the card on her door says "please wait")! Actually no point phoning ahead, most walkup girls just take the next punter even if she booked a time with you.
HG's you'll have to read some reports or be ready to phone around. Some agents don't speak English - but many do - and if you have difficulty you may find SMS works to bridge the language gap.
So - yes - you can nail a girl who doesn't know English.
Body language is the only language you need to get laid, along with your wallet.