You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you today?

USER: I am Brandon Rodriguez. I made a earlier reservation to attend a event, due to some problems it got postponed. Can you please change my reservation?

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: Ok, no issue. Thank you for your information.

ASSISTANT: Thank you for reaching us.