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

ASSISTANT: Hello, how can I help you?

USER: Due to my interview has been postponed, I want to cancel my recent reservation. Can you assist me with this?

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting. Sorry, there is no reservation found with your name.

USER: Ok, no issue.

ASSISTANT: Thanks for choosing us.