You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Sandra Turner.

ASSISTANT: How can I assist you at this moment?

USER: Due to some conference meetings, I am going to cancel my reservation. Could you please help me in cancelling the reservation?

ASSISTANT: Sure, I am glad to help you in cancelling your reservation.

USER: Sure, I will wait for your response.

ASSISTANT: Please allow me a moment to check for your previous reservation status. Thank you for waiting. Sorry Turner, I didn't found any active reservation under your name in our records to cancel it.

USER: Not a big deal, anyhow thank you very much for your service.

ASSISTANT: Thank you for availing our service.