You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: My holiday vacation has been postponed.Can you please help me for cancelling the recent reservation?

ASSISTANT: Sure, I can help you with that. May I know your name to check for the previous reservation?

USER: Sure, my name is Amanda Williams.

ASSISTANT: Your patience is greatly appreciated. Amanda, I see that there is no reservation found under your name.

USER: That's really sad. Ok, thank you for your information.

ASSISTANT: You are welcome. Thank you for contacting us.