Hello.
user
Hello, how may I help you?
assistant
I am Alexander Wilson. I need to change my recent reservation because my trip dates are postponed, can you help me?
user
Sure, please wait for a while.
assistant
Sure, take your own time.
user
Sorry, there was no reservation found with your given name.
assistant
That's ok, thank you for checking.
user
Thank you for opting us.
assistant