YOU SAID:
restaurant reservations in another country are frustrating
INTO JAPANESE
他の国のレストランの予約がイライラしている
BACK INTO ENGLISH
Restaurant reservations in other countries are frustrating
INTO JAPANESE
ほかの国のレストランの予約がイライラしています
BACK INTO ENGLISH
Restaurant reservations in other countries are frustrating
That didn't even make that much sense in English.