Hello, I am Paul Williams.
user
Hello, how can I assist you?
assistant
I want to change my existing reservation as my round trip to Austin got rescheduled. Please help me out.
user
Sure, please wait for a moment.
assistant
Ok, take your time.
user
Thanks for waiting, sorry to say that, no reservation was found with your good name.
assistant
That's fine, thank you for your response.
user
Thanks for opting us.
assistant