Hello. I am Charles Collins.
user
Hello, how may I help you today?
assistant
 I want to cancel my recent ticket booking due to office work that my manager did not approved my leaves, so can you please cancel it?
user
Sure, please wait for a moment.
assistant
Sure.
user
Thank you for waiting, there is no reservation found on your name.
assistant
Not an issue. Thank you for the information.
user
Thank you.
assistant