You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you now?

USER: I need to cancel my recent reservation due to some issues, can you help me?

ASSISTANT: Sure, I am glad to help you with that. Can I know your name to check your previous reservation?

USER: I am Mary Taylor.

ASSISTANT: Please wait a moment to check.

USER: Sure, take your time.

ASSISTANT: We regret to inform you that, there is no reservation found on your name in our records.

USER: Ok, no issues. Thank you for the information.

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