You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

USER: As my exam got cancelled, I want to cancel my recent reservation. Can you help me out?

ASSISTANT: Sure, I will help you to cancel your reservation.

USER: Please check the details on the name of Sarah Hill.

ASSISTANT: Ok, please give me a moment to check your previous reservation status.

USER: Sure.

ASSISTANT: Sorry, no reservation found on your name to cancel your reservation.

USER: That's ok, thank you.

ASSISTANT: Welcome, have a nice day. Thank you for choosing us.