You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Please cancel my recent reservation? As my planned trip has been cancelled.

ASSISTANT: Sure. I am here to assist you. May I know your name?

USER: My name is Kenneth Lewis.

ASSISTANT: Thank you. Let me check your reservation status.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found under your name in our database.

USER: That's ok, thank you for giving the information.

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