You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Brian Lopez.

ASSISTANT: How can I assist you?

USER: My business meeting has been cancelled. So, I would like to cancel my reservation. Can you please help me with that?

ASSISTANT: Ok, I can help you with that. Thank you for waiting.

USER: You are welcome.

ASSISTANT: Sorry, I did not found any flight ticket on your name.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Most welcome.