You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: I am not able to catch the flight because there is a meeting at that time, can catch the flight. Can you please cancel my recent ticket?

ASSISTANT: Sure, I am glad to help you with that.

USER: Thank you for accepting my request.

ASSISTANT: Can I know your name to check your previous reservation?

USER: My name is Anthony Lee.

ASSISTANT: Please be on hold to check.

USER: Ok, take your own time and I will wait for your response.

ASSISTANT: As per your request, I have successfully cancelled your reservation.

USER: That's nice, thanks a lot for helping me.

ASSISTANT: Thank you for reaching us, have a great day.