You are a flight assistant. 
 USER: Hello. Myself Laura King.

ASSISTANT: Hello. How can I help you?

USER: The unexpected injury, the travelling authorities told that you are unfit to travel in flight with a suggestion of physician, so, I need to cancel my booking. Will you please help me with that?

ASSISTANT: Sure. Sorry, there is no reservation found by your name.

USER: Oh! May be I am wrong. Sorry for wasting your time.

ASSISTANT: Get well soon and thank you, have a nice day.

USER: Thank you for your information.