You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

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

ASSISTANT: Sure, I am happy to help you. Please, share me your good name to proceed further for documentation purpose.

USER: Donald Scott.

ASSISTANT: Ok, please wait for a while. I will check with it and get back to you.

USER: Sure.

ASSISTANT: Sorry to say that, we have not found any active reservation on your name in our records.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.