You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you now?

USER: I am Mary Adams. I would like to cancel my flight ticket, so can you please help me in flight cancellation?

ASSISTANT: Sure Mary Adams, I am happy to help you with cancelling your reservation.

USER: Thank you for accepting my request.

ASSISTANT: Please wait a moment to check your reservation status.

USER: Sure.

ASSISTANT: Sorry Mary Adams, no reservation has found under your name to cancel.

USER: Ok, that's fine. Thank you for your help.

ASSISTANT: Thank you for choosing us, have a good day.

USER: You are welcome.