You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I want help to cancel my recent reservation, can you help me with that?

ASSISTANT: Sure, may I know your name to check the status of your previous reservation to cancel it.

USER: I am Karen Nelson.

ASSISTANT: Please wait for a while, let me check.

USER: Sure, take your own time.

ASSISTANT: Thanks for your patience, there is no reservation under your name.

USER: That's fine, not a issues. Thanks for your checking.

ASSISTANT: Welcome, thanks for consulting us.