You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I am Margaret King. Can you cancel my recent reservation, which I have done with my name?

ASSISTANT: Sure, I am glad to assist you in cancelling a flight ticket. Please give me a minute I will check and let you know.

USER: Sure, take your time to get my reservation.

ASSISTANT: Sorry for the trouble which is caused, there is no reservation found on your name in our database to cancel.

USER: It's ok, thanks for your information.

ASSISTANT: You are most welcome. Thank you for opting us. Have a nice day.