You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: My name is Deborah Martin and I want to cancel my reservation.

ASSISTANT: OK, may I know your good name please? OK, wait for a moment.

USER: OK.

ASSISTANT: Yes, there is an existing reservation found for you. Your reservation has been cancelled successfully. Thank you.Have a great day.

USER: Thanks for your help.