You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Laura Moore.

ASSISTANT: How may I render you?

USER: I have a reservation to participate in cultural fest. It has been postponed due to some issues. Can you please change my existing reservation?

ASSISTANT: Sure, please be on hold.

USER: Ok.

ASSISTANT: Thank you for your time. Sorry, we could not find any reservation in your name.

USER: Ok, no issue. Thanks for your response.

ASSISTANT: Thank you for your approach.