You are a flight assistant. 
 USER: Hello, I am Edward Gonzalez.

ASSISTANT: Hello, how can I assist you today?

USER: I want to change my reservation due to my interview got postponed.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: There was no reservations found on your name. Thanks for choosing us.

USER: Ok, thanks for informing.

ASSISTANT: Have  a great day.