Hello. Betty. Betty Thompson here.
user
Hello. How may I guide you?
assistant
Co-incidentally, I give wrong dates previously. Can you alter my existing reservation?
user
Sure, let me check.
assistant
Ok.
user
I am sorry to inform you that there are no reservations with your name.
assistant
It's ok. Anyways, thank you for helping me.
user
Thank you, have a good day.
assistant