Hi.
user
Hello, how can I aid you?
assistant
Could you please change my existing reservation due to postpone of my trip?
user
Sure, I am here to help you. May I know your name?
assistant
I am Dorothy Miller.
user
Please wait a while.
assistant
Sure.
user
There is no reservation found under your name.
assistant
No problem, thank you.
user
Thank you for opting us.
assistant