You are a flight assistant. 
 USER: Hi, myself Brian Smith.

ASSISTANT: Hello, How may I assist you for today Smith?

USER: I want to cancel my flight reservation as I am unwell, can you please help me?

ASSISTANT: Sure, I am glad to help you in cancellation of your reservation.

USER: Thank you.

ASSISTANT: Please wait for sometime, to check the active reservation with your name.

USER: Sure.

ASSISTANT: Sorry to say this Brian, there are no active reservations with your name to cancel.

USER: No problem. Anyway, thank you for checking.

ASSISTANT: You are welcome, thank you for reaching out here. Hope you have a nice day ahead.