Thank you for arranging the booking of a restaurant. I have talked with my boss about it, and he/she said there is no problem with the place and the time and date.
Thank you for making reservations of the restaurant for us. My manager has confirmed that the date and time, and the place of the restaurant is just fine.
上司が男性か女性かによって、二行目のhe/sheのどちらかを選んでください。