You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Joseph Scott here.

ASSISTANT: How can I aid you?

USER: I would like to cancel my reservation due to some health issues, can you please help me in that?

ASSISTANT: Sure, please allow me a moment to check for your previous reservation status is active or not.

USER: Thank you for accepting my request. Sure, I will wait for your response.

ASSISTANT: Sorry Scott, there is no active reservation have been found under your name in our database to cancel it.

USER: That's ok, no problem. It might be mistaken while booking. Anyway thank you for the information.

ASSISTANT: Thank you for reaching us.