It places the lady in a situation where she either has to wait in the lobby for you to come and collect her, or she must approach the reception desk and ask for call your room.
Your companion wants to be as discreet as you do, and draw as little attention to your intimate interlude as possible.
It is a private encounter between you and her – it is best to remain that way.
*tip: when arranging a hotel, enquire if the elevators require a swipe card or security key. If the answer is yes, then it is best to make arrangements with "concierge" leave a key on concierge for masseur escort to swipe on lift and go to your room.