Hi.
user
Hello, How can I best serve you today?
assistant
I want to cancel my recent reservation due to sudden cancellation of my trip. Can you help me?
user
Sure, I am here to help you with that, can I know your good name to proceed further?
assistant
Donna Thomas here.
user
 I am very sorry to inform you that there is no reservation found under your name in our database.
assistant
No problem, thanks for the information.
user
Thank you for choosing us.
assistant