You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you now?

USER: Brian Martinez here, suddenly I am fallen sick I want to cancel my recent reservation. Can you please help me with it?

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting. Sorry to notify that there is no reservation found on you name.

USER: Not an issue, thank you.

ASSISTANT: Thanks for opting us and have a great day.