You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Anna Robinson here.

ASSISTANT: How can I assist you?

USER: I was made a wrong reservation earlier in this week. So I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Sure Anna, please wait a moment.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Thank you for the information.

ASSISTANT: Thank you for approaching us.