Would you please be so kind as to PM me the email. I have received a few of these in the past, and most of these are usually from the Nigerian scammers. They want to book you NOW, and they will pay any price you ask, and the wording is strange in the way foreigners write English, but there is a tendency to use grandiose words and such.
Now I could be wrong and it could be a genuine inquiry, in that case, since it is such short notice, he needs to WU you half your fee, and you can take the EuroStar train to Paris, drops you right at Gard Du Nord, smack in the center. Also, get hotel, full name, so you can check it out. Look up the hotel on line to see if it exists, and to get the number.
Good luck, Kisses Violette