You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to cancel my recent reservation. Could you help me with that?

ASSISTANT: May I know your name please? Sure.

USER: Deborah White here.

ASSISTANT: Give me a moment.

USER: Ok.

ASSISTANT: There is no reservation found with your name in our database.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.