You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I am Nancy Martinez. I want to cancel my recent reservation due to postpone of my seminar. Could you please help me?

ASSISTANT: Sure, I am glad to help you. Please be on hold.

USER: Sure.

ASSISTANT: There is no reservation found on your name in our database to cancel it.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for availing us.