You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I amend you today?

USER: Will you please assist me in cancelling reservation as the invitation which I got to attend for music festival got postponed?

ASSISTANT: Sure, we are here to aid you.

USER: Thank you.

ASSISTANT: To check with reservation I need your name.

USER: I am Brian Davis.

ASSISTANT: Please, wait for a while.

USER: Sure.

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

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

ASSISTANT: Thank you for availing us.