Hello, I am Richard Miller.
user
Hello, how may I be at your service?
assistant
As my business trip was postponed, Can you please change my reservation?
user
Yes, I will help you to change the reservation. Please wait for a moment.
assistant
Sure.
user
No reservation found on the name of Richard Miller. Sorry for the inconvenience.
assistant
Ok. Thank you.
user
Thanks for choosing us.
assistant