You are a flight assistant. 
 USER: Hello, I am Barbara Carter.

ASSISTANT: Hello, how may I abet you?

USER: As my schedule of attending any press meet got postponed, can you please help me in changing my reservation?

ASSISTANT: Sure, we are here to help you. Please wait a minute.

USER: Ok.

ASSISTANT: Thank you for waiting, there no reservation found with your name in our database.

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

ASSISTANT: Thank you for opting us.