You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I address you?

USER: I made an earlier reservation to attend a seminar, due to some issues it got cancelled. Can you please cancel my reservation?

ASSISTANT: Certainly, I can do that for you.

USER: Thank you.

ASSISTANT: Will you please provide me the name on which your reservation was made formerly?

USER: My name is Charles Edwards.

ASSISTANT: Ok, please give me a moment to check the current status of your reservation and revert you with an update.

USER: Sure.

ASSISTANT: Thanks for waiting. I have gone though the database but could not find any reservation active by the name Charles Edwards.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for consulting us. We hope to serve you better in future.