You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: As my meeting got cancelled, can you please cancel my recent reservation to Dallas?

ASSISTANT: Sure, I can do that for you. Let me check your reservation status. May I know your name?

USER: My previous reservation has done with the name Christopher Moore.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Moore, I did not find any reservation under your name in our database.

USER: Ok, not an issue. May be something went wrong while booking the ticket previously. Thank you for providing information.

ASSISTANT: You are welcome and thank you for contacting us.