Hello.
user
Hello, how can I aid you today?
assistant
I would like to change my existing reservation because my trip dates are got postponed, can you help me?
user
Sure, I am here to help you. could you please help me with your name?
assistant
I am Steven Hill.
user
There is no reservation found under your name to change.
assistant
That's ok, thank you for checking.
user
Thank you for opting us.
assistant