Hello.
user
Hello.
assistant
My business trip has been postponed. Can you please help me for cancelling  the recent reservation?
user
Sure, I can help you with that.
assistant
Thank you.
user
May I know your name please.
assistant
Sure, my name is Christine Hill.
user
Hill, there is no reservation found in my database on your name.
assistant
Ok, no problem.
user
Thank you for your positive response.
assistant
Thank you for your information.
user
You are welcome.
assistant