You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you now?

USER: I have planned a trip to Seattle to attend a family part but suddenly the event got cancelled due to weather conditions, can you please cancel my flight ticket booking?

ASSISTANT: Sure, I will help you with that. May I know your good name please?

USER: Thank you so much and my name is Margaret Davis.

ASSISTANT: Please wait for a moment, while I check for your reservation.

USER: Sure, I can wait.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name in our system data.

USER: I think it might be cancelled by my brother that I have informed to him previously, thank you for checking my reservation status.

ASSISTANT: Thank you for reaching us, we hope see you again.

USER: Welcome.