You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: My name is David Carter. I want to cancel my recently done reservation, can you please help?

ASSISTANT: Sure, I am here to help you. Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time, there is no active reservation found in your name.

USER: Not an issue, thank you anyway.

ASSISTANT: Thank you for choosing us.