You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Susan Johnson. Can you please help me in cancelling my recent reservation?

ASSISTANT: Sure, please wait for a moment.

USER: Ok, sure.

ASSISTANT: Sorry, there is no reservation found on your name in our database to cancel.

USER: Ok, thank you for checking.

ASSISTANT: Thank you for approaching us.