You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do to make your experience better with us?

USER: I want to cancel my reservation, so please help me in the cancellation.

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can I know your name to check the reservation list?

USER: Myself Frank Campbell.

ASSISTANT: Thank you for providing your name, please wait a moment.

USER: Ok.

ASSISTANT: Thank you for waiting. Sorry, there is no active reservation have been found under your name in our database to Cancel it.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for choosing us.