F: Wow, what's that smell? I booked a non smoking room, but I can smell smoke in here. ,M: Oh, did you? I'll call the front desk and check for you if we have a non smoking room available.
(A) F: Ok, although I booked a non-smoking room, I like this room. (B) F: I am really sorry, I did not catch that. Would you slow down, please? (C) F: But we are at the front desk, I won't book a non-smoking room. (D) F: Although we are outside the hotel, I can smell smoke here.
B