You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you now?

USER: I am Brenda Smith, I would like to cancel my reservation. Can you please help me about it?

ASSISTANT: Sure, I will help you with that. Please wait for a while.

USER: Ok, sure.

ASSISTANT: Sorry Brenda, there is no reservation found on your name.

USER: Ok, fine. Anyway thank you for the information.

ASSISTANT: Thank you for approaching us, have a nice day.