You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Nicole King here, I want to cancel my reservation due to my health issue. Help me about it.

ASSISTANT: Sure, please give me a moment to check the database. Sorry Nicole, there is no such reservation available on your given name.

USER: Ok, fine. Thank you for the help.

ASSISTANT: Most welcome.