Hi.
user
Hello, how may I help you?
assistant
Would it be possible to change my reservation to new travel dates?
user
Sure, let me know your name please?
assistant
Ok, I am James Roberts.
user
Please wait for a while.
assistant
Take your time.
user
Sorry to inform you that there is no active reservation on your given name.
assistant
It's ok, thanks for checking.
user
Thank you for contacting us.
assistant