You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you at this time?

USER: I am Larry Roberts. I would like to cancel my flight reservation as I am unwell, please do that for me.

ASSISTANT: Ok, I am here to help you. Please wait wait for a while.

USER: Sure.

ASSISTANT: Sorry, no reservation found on your name to cancel.

USER: Not an issue, thank you for checking.

ASSISTANT: Thank you for reaching us.