You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Due to my ill health, I am unable to travel long distances. Please help me in cancelling my recent reservation.

ASSISTANT: Sure, I am here to help you with this.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: My name is Margaret Lewis.

ASSISTANT: Please wait.

USER: Sure, take your time.

ASSISTANT: Sorry Lewis, there is no reservation found as per your name to cancel it.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: You are welcome.