You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you now?

USER: I would like to cancel my previous ticket because the planned trip got cancelled. Can you please help me to do that?

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

USER: Thank you for accepting my request.

ASSISTANT: Can I have your good name please to check your reservation status?

USER: My name is Brandon Jackson.

ASSISTANT: Ok, please wait a moment.

USER: Ok, take your time. I can wait for your response.

ASSISTANT: Sorry Brandon Jackson, no reservation has found under your name to cancel.

USER: It's ok, not a problem. Anyhow thanks a lot for your time.

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

USER: You are welcome.