You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

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

ASSISTANT: I am here to help you, may I know your name to check your reservation?

USER: Donna Johnson here.

ASSISTANT: Thanks for your response, wait a moment.

USER: Ok.

ASSISTANT: Thanks for your time, there is no reservation found on your name to cancel it.

USER: That's ok, no problem.

ASSISTANT: Thanks for choosing us.

USER: Thank you.