You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I address you?

USER:  As sudden change in my plan I want to cancel my recent reservation. Can you help me with that?

ASSISTANT: Sure, let me know your name.

USER: My name is Jonathan Jones.

ASSISTANT: Ok, please wait for a while, I will check the reservation list and cancel the reservation.

USER: Sure.

ASSISTANT: Thanks for waiting, no reservation found with your name to cancel the reservation.

USER: Ok, Not an issue. Thank you.

ASSISTANT: Thanks for opting us.