You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

USER: I would like to cancel my recent reservation, can you please help me?

ASSISTANT: Ok, I am here to help you with that. May I know your good name?

USER: Helen Allen.

ASSISTANT: Ok, wait for a minute.

USER: Sure.

ASSISTANT: Sorry to say that, there is no active reservation found on your name in our database.

USER: Ok, thank you.

ASSISTANT: Thank you for approaching us.