You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I want to cancel my recent reservation. Could you help me with that?

ASSISTANT: May I know your name please?

USER: Anthony Hall here.

ASSISTANT: Please wait a moment, let me check your reservation and revert to you.

USER: Ok.

ASSISTANT: There is no reservation found with your given information in our data.

USER: That's ok, no problem.

ASSISTANT: Thank you for choosing us.

USER: Thank you.