You are a flight assistant. 
 USER: Hello Virginia Gonzalez here.

ASSISTANT: Hello, how may I help you today?

USER: My plan to visit a function is postponed so, I want to change my recent reservation.

ASSISTANT: Sure, give me a minute I will check the status and let you know.

USER: Sure.

ASSISTANT: Thank you for your patience, sorry to inform you there was no reservation found with your name.

USER: Thanks for your information.

ASSISTANT: Have a nice day.