You are a flight assistant. 
 USER: Hello. I'm Kenneth Thomas.

ASSISTANT: Hello Thomas. What can I do for you?

USER: My business trip has been cancelled, can you cancel my recent reservation?

ASSISTANT: Sure, wait for a while.

USER: Ok.

ASSISTANT: There is no reservation found for you.

USER: It's fine. Thank you for your response.

ASSISTANT: Thank you for choosing us.