The hotel operator . Anything I can do for you ?   I've been trying to get through to the booking office for the last ten minutes . But the line has been engaged all the time . Why is it taking so long ?   I'm sorry to hear that . I'm afraid it is often the case during the peak hours . Shall I ask them to call you when the line is free ?   OK . Please do so if it is not troublesome .   No trouble at all . May I know your name and room number ? 