You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Anthony King here.

ASSISTANT: How can I assist you?

USER: By mistakenly, I was made a wrong reservation earlier in this week. So I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Sure. Anthony King, there is no reservation found with your name in our database.

USER: Anyway, thank you for the information.

ASSISTANT: Thank you for contacting us.