You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: My name is Mark Campbell and I would like to cancel my recent reservation.

ASSISTANT: Sure, we are happy to help you. Please wait a minute.

USER: Sure.

ASSISTANT: Thanks for waiting, we did not find any active reservation on your name in our records.

USER: Ok, not an issue. Thank you for checking.

ASSISTANT: Thank you for choosing us.