Hello.
user
Hello, how can I help you today?
assistant
 I am Betty Adams. I want to cancel my reservation due to prepone of my sister wedding. Can you please help me in cancelling my ticket?
user
Sure, please wait for a while.
assistant
Ok.
user
Sorry, there is no reservation found on your given name.
assistant
Thank you for your response.
user
Thanks for choosing us.
assistant