You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Due to inconvenience of my work, I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Sure, may I know your name?

USER: My name is Kenneth Jones.

ASSISTANT: Please wait a moment.

USER: Ok, I will wait.

ASSISTANT: Sorry to say that, there are no active reservations on your given name to cancel.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for reaching our service.