You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: My exam got postponed in AUS, can you please cancel my recent reservation?

ASSISTANT: Sure, can you help me by giving your name to check your reservation?

USER: Myself Kevin Turner.

ASSISTANT: Thanks for your name, there is no reservation found on your name.

USER: Thank you.

ASSISTANT: Ok, thanks for choosing us.