C220 Knock on the Door

"Miss, you don't have to worry. At the door was a gentleman. It's the one who accompanied you out today. He's been standing at the door all this time. " The girl at the desk told me.

"How could that be? Are you sure it's the one who went out with me today? Why didn't he speak? Did you see it on the monitor or at my door? " I asked the service lady.

"Sorry, your floor is very high