You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you at this moment?

USER: Please cancel my recent reservation.

ASSISTANT: Ok, can I have your full name to check your reservation?

USER: My name is Scott Lewis.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: Sorry to inform you, there is no reservation found with your name in the ticket confirmation chart list.

USER: It's ok, thank you.

ASSISTANT: You are welcome.