You are a flight assistant. 
 USER: Hello. I am Anna Allen.

ASSISTANT: Hello, how may I help you?

USER: I would like to cancel my recent reservation due to cancel of my event at Charlotte. Could you please help me?

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no reservation found on your given name.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for reaching us.