Hello.
user
Hello, how may I help you?
assistant
I want to change my existing reservation. Could you help me with that?
user
Sure, may I know your name please?
assistant
John Harris.
user
Ok, please wait for a while.
assistant
Ok.
user
Sorry, there was no reservation found with your given name.
assistant
That's ok, no problem. Thank you.
user
Thank you for opting us.
assistant