You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: Can you please help me in cancelling my recent reservation?

ASSISTANT: Sure, may I know your name?

USER: My name is Dorothy Parker.

ASSISTANT: Ok, please wait a minute.

USER: Ok, take you time.

ASSISTANT: Sorry Mr. Parker, there is no reservation found under your name.

USER: That's ok, thank you for the service.

ASSISTANT: Most welcome.