You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I want to cancel my recent reservation, can you please help me with this?

ASSISTANT: Sure, may I know your name?

USER: I am Charles Jackson.

ASSISTANT: Please, wait a minute.

USER: Sure.

ASSISTANT: Sorry, there was no reservation found on your name in our database.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.