You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you?

USER: Due to tornadoes, my cricket tournament has been postponed. I would have to change my existing reservation. Can you help me out?

ASSISTANT: May I have your name please?

USER: Brenda Lewis.

ASSISTANT: Please give me a moment, let me check and back to you.

USER: Sure.

ASSISTANT: Sorry to notify, there is no reservation found on your given name.

USER: Ok, not an issue.

ASSISTANT: Thank you for choosing us.

USER: Thanks for the help.