You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I want to cancel my recent reservation which I have done earlier, as my health is not good. Can you please help me out with it?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: May I know your name?

USER: My name is Jacob Walker.

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

USER: Ok, not a problem. Anyways, thanks for the information.

ASSISTANT: Thank you for opting us, have a nice day.