You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I need to cancel my existing reservation, which is done recently. Can you please help me out?

ASSISTANT: Sure, may I know your good name?

USER: My name is Amanda Brown.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

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

ASSISTANT: Thank you for reaching us.

USER: Thank you for your service.