You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: At last minute my meeting got cancelled which is scheduled earlier, I made a booking earlier for that meeting. So, please cancel my recent reservation.

ASSISTANT: Sure, I am here to help you. May I know your name to check your reservation?

USER: Sure, I am Amy Williams.

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

USER: Ok. Thank you for your help.

ASSISTANT: Thanks for choosing us, have a good day.