Japanese in Action!

Below is an actual conversation (translated into English) between myself and a Japanese man this afternoon at Takashimaya Time Square.

Japanese Man: (KNOCK) (KNOCK)
Me: "Uh, yes?"
JM: "Pardon me, did I leave my bag in there?"
Me: "Yes."
JM: (Probably did not hear me through the door) "Is there a bag in there?"
Me: "Yes. Just a second..."
JM: "Thank you. Sorry for bothering you."
Two minutes later.
Me: (Exiting the stall of the men's room) "Okay. Go ahead."
JM" "Thank you. Sorry for the trouble."