You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your good name, Please?

USER: My name is Donna Anderson. Preponed plan came into picture owing to an announcement of birth of baby girl. So I need to cancel my reservation.

ASSISTANT: Sure, We can help you on that. Please wait for a moment, OK.

USER: OK.

ASSISTANT: We are very sorry to inform you that, There is no reservation found on Donna Anderson.

USER: That's not a problem.

ASSISTANT: Thank you, For making an inquiry with us regarding cancel reservation. Have a great day.

USER: Thank you.