You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

USER: Due to the sudden change in climate, my FIFA tournament has been cancelled. So can you please help me to cancel my recent reservation?

ASSISTANT: Sure, may I know your name to cancel your reservation?

USER: My name is Michelle Brown.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, no reservation found with your name to cancel your reservation.

USER: That's not a problem. Thank you.

ASSISTANT: Thanks for choosing us.