Hello.
user
Hello. How can I help you?
assistant
My vacation has been postponed.Can you please help me for cancelling the recent reservation?
user
May I know your preferable dates? Sure. Give me a minute?
assistant
Ok. Can you please cancel the reservation based  on my name?
user
May I know your name please?
assistant
Sure, my name is Gary Mitchell.
user
I am sorry to say that there is no reservation found.
assistant
Ok, It's fine. Thank you for your information.
user
Thank you.
assistant