[speaker001:] Room service.What can I do for you?
[speaker002:] I find the sheet in my room is so stained.Would you please help us change it for a clean one?
[speaker001:] I am sorry.sir. Someone will there in a moment.
[speaker002:] All right. Please be quick about it.
[speaker001:] Yes, sir. I assure you it would never happen again.