You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I want to cancel my recent reservation due to bad health condition. Can you help me with that?

ASSISTANT: Ok, may I know your good name?

USER: I am Brandon Collins.

ASSISTANT:  Please wait I will revert you in a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that no reservation was found on your name.

USER: No problem. Thank you.

ASSISTANT: Thank you for availing us.