You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: My business meeting has been cancelled. So, I would like to cancel my recent reservation which is under my name. Can you please help me with that?

ASSISTANT: Sure, can you please provide your name to find your existing reservation?

USER: Sure, my reservation has done with the name Dennis Anderson.

ASSISTANT: Please give me a minute.

USER: Ok, take your time.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: Ok, no issues. My brother might have cancelled my reservation. Anyways, thank you for checking.

ASSISTANT: Thank you for contacting us.

USER: You are welcome.