You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Nancy Smith.

ASSISTANT: How can I address you?

USER: Please cancel my reservation, which I have done with my name previously.

ASSISTANT: Sure, I can help you.

USER: Thanks.

ASSISTANT: Please wait a while.

USER: Take your own time.

ASSISTANT: Thanks for being waiting.

USER: Not an issue.

ASSISTANT: We found a active reservation by this name. Can I proceed it further for cancellation?

USER: Yes, please.

ASSISTANT: Your flight ticket has been cancelled.

USER: Thanks for your quick response and service.

ASSISTANT: Thank you for choosing us.