You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I would like to cancel my flight reservation as my trip got postponed, can you please help me?

ASSISTANT: Sure, I can help you with that. May I know your good name please?

USER: Robert Davis.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Robert Davis, there is no active reservation found under your name to do cancellation.

USER: Not an issue, thank you for the information.

ASSISTANT: Thank you for choosing us.