Hello.
user
Hello, how may I oblige you today?
assistant
I am Mitchell Campbell, I want to cancel my ticket as my meeting is cancelled.
user
Sure, we are here to  help you. Please hold a moment, let me check your reservation and let you know.
assistant
Sure.
user
Thanks for your time, sorry, no reservation found with provided name.
assistant
Ok, thank you for information.
user
Thank you for availing us.
assistant