You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you now?

USER: Myself Dennis Nelson. For some issues I want to cancel my reservation, can you please help me?

ASSISTANT: Sure, I will help you with that.

USER: Thanks.

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

USER: Sure.

ASSISTANT: Sorry Dennis Nelson, no reservation has found under your name to cancel.

USER: It's ok. Thank you for the information.

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