Maintenance Department. May I come in?
Come in, please.
Did you call us?
Yes. The television is not working properly.
What's the problem?
The remote control doesn't work. I turned on the television, but I can't change the channel.
Let me have a look. I think the batteries should be changed. Let me replace them with new ones. Now, it's working.
That's great.
Is there anything else I can do for you?
No, thanks.
If you have any problems, just call us.
OK. Thank you.