You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I have planned to meet my sister, but it has been cancelled. Can you please cancel my recent reservation?

ASSISTANT: Sure, I am gleeful to help you with that.

USER: Thank you.

ASSISTANT: May I know your name?

USER: Sure, I am Amanda Adams.

ASSISTANT: Sorry, no reservation found on your name.

USER: Ok, Thank you for your help.

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