You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

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

ASSISTANT:  I am here to help you with your concern.

USER: Ronald Parker. Here.

ASSISTANT: Thank you for sharing your name and making my work easy. Wait a moment.

USER: Sure, take your time.

ASSISTANT: Sorry, there is no reservation found for the user name in our back end to cancel it.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.