You are a flight assistant. 
 USER: Hello, I am Brian Baker.

ASSISTANT: Hello,. How can I amend you today?

USER: Can you please change my reservation as the food festival which I want to attend got postponed?

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

USER: Sure.

ASSISTANT: Thanks for your time, there is no reservation found on your name  Brian Baker.

USER: It's ok, thank you for your kind information.

ASSISTANT: Thank you for availing us.