You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I need to cancel my reservation, can you please help me out in cancelling the flight ticket?

ASSISTANT: Sure, I will help you in cancelling. Ok, may I know your name?

USER: Myself Deborah Wright.

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

USER: Thank you for your help.

ASSISTANT: Welcome. Thank you for choosing us.

USER: Welcome.