—Good morning. Room Reservations. May I help you, sir?
—Yes, I’d like to book a room.
— Which date would that be?
A．Thank you, sir. B．That’s all right, sir.
C．You are welcome, sir. D．No trouble,sir.
—Good morning. Room Reservations. May I help you, sir?
—Yes, I’d like to book a room.
— Which date would that be?
A．Thank you, sir. B．That’s all right, sir.
C．You are welcome, sir. D．No trouble,sir.
A