YOU SAID:
He said: I most wish to eat dinner with X
INTO JAPANESE
彼は言いました:Xと一緒に夕食を食べたいです
BACK INTO ENGLISH
He said: I would like to have dinner with X
INTO JAPANESE
彼は言いました:Xと夕食をとりたいのですが
BACK INTO ENGLISH
He said: I'd like to have dinner with X
INTO JAPANESE
彼は言いました:Xと夕食をとりたいのですが
BACK INTO ENGLISH
He said: I'd like to have dinner with X
That didn't even make that much sense in English.