You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER:  I am Carol Clark want to cancel my reservation due prepone of my meeting. Can you help me with it?

ASSISTANT: Sure. To check the reservation list we need your good name, can you please share me your name?

USER: I have already provided.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Thank you Carol Clark, there is no reservation on your name.

USER: Thank you for your help.

ASSISTANT: Thank you so much.