You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you for the day?

USER: Nicole Evans here, my football match has been postponed. Can you please change my existing reservation?

ASSISTANT: Sure, please wait for a moment, I will check and revert to you.

USER: Ok.

ASSISTANT: Thank you for your time. There is no reservation found on your name.

USER: Not an issue, thank you.

ASSISTANT: Thank you for availing with us.