You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: I want to cancel my recent reservation, due to my meeting has been cancelled.

ASSISTANT: Sure, I am glad to help you.

USER: Thanks for considering my request.

ASSISTANT: Could I have your name please?

USER: Sure, please check my reservation on the name of Laura Anderson.

ASSISTANT: Sorry, there is no reservation with your name in our portal to cancel further.

USER: Ok, thanks for your information.

ASSISTANT: You are welcome, have a great day.