Hello!
Hello, how can I help?
I need to make a service request.
Could I get your name, please?
Ben
At what hotel are you currently staying?
Old Town Inn room 301
At what time would you like us to provide the service?
9am
Right, please let us know your request now.
I need more towels, please. 
I am sorry to inform you that your request could not be processed at this time.
You can't bring more towels? That seems a little ridiculous, but okay. 
Is there anything else that I can do for you?
No
Thank you and goodbye.