Hello.
user
Hello, how can I aid you?
assistant
I want to cancel my recent reservation due to sudden rainfall at my source. Can you please help me with this?
user
Sure, I am here to help you. May I know your name to check with existing reservation?
assistant
I am David Miller.
user
 I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.
assistant
Ok, no problem. Thank you for checking.
user
Thank you for choosing us.
assistant