You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you?

USER: Due to an emergency work in hospital, I want to cancel my reservation. Can you help me?

ASSISTANT: Sure. Unfortunately, there is no reservation found on your name. Sorry for the inconvenience.

USER: No issue.

ASSISTANT: Thanks for opting us. Hope to serve you better next time.

USER: Thanks for the information.

ASSISTANT: May I please know your name for the database?

USER: Margaret Lewis.

ASSISTANT: Ok, thank you very much.