where is he hes not in his office his room or anywhere at any time

He'll be on the other side of the place, in his own fancy room next to a room with loads of bunk beds.

I love your username btw.

He is in the embassy, on the left, at the end of the hallway.

Yes, like these two have said, he's on the other side of the building opposite his office. Do note that he wont just sleep in what is clearly HIS bed, he also sleeps in varying bunks. Unless your game spasms and he dissappears from the game, he never leaves the Embassy period.