You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Larry Carter.

ASSISTANT: How can I aid you?

USER: Can you please cancel my existing reservation as my plan to attend a cultural event got cancelled?

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thanks  for your time.

USER: Ok.

ASSISTANT: I am sorry to say that, there is no active reservation found with your name in our database to cancel it.

USER: Ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for choosing us.