You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you now?

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

ASSISTANT: Sure Donald Thompson, I am happy to help you with that.

USER: Thank you.

ASSISTANT: Please wait a moment to check your reservation status.

USER: Ok.

ASSISTANT: Sorry Donald Thompson, no reservation has found under your name to cancel.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us, have a good day.