You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, do you need any help from us?

USER: I Nam Kimberly Davis. I want  to cancel my  reservation due to cancellation of my  trip. Can you help me?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: Sorry, there is no reservation with your name to cancel.

USER: No issue. Thank you.

ASSISTANT: You are welcome.