You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Since there was an emergency in the company, I had to cancel the meeting which was scheduled on 12/05 in AUS. So, can you please help me in cancelling my recent reservation?

ASSISTANT: Ok, can I know your name for checking the details?

USER: Myself Patrick Hall.

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

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

ASSISTANT: You are welcome.