You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: Due to sudden change of my business meeting because of some technical problem, I need to change my reservation so can you help me with that?

ASSISTANT: Sure, I am happy to help you. Can I have your good name to proceed further?

USER: I am Patricia Young.

ASSISTANT: Sorry, we did not find any active reservation on your name in our records.

USER: Ok, no problem. Thanks for the information.

ASSISTANT: Thank you for opting us.