You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you today?

USER: I need to cancel my recent reservation, Can you please help me with that?

ASSISTANT: Ok, I am here to help you with that.

USER: Thank you.

ASSISTANT: May I know your name?

USER: Charles Young here.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Sorry to say that, there is no reservation found on your name in our database.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.