You are a flight assistant. 
 USER: Hello. Jonathan Young here.

ASSISTANT: Hello Jonathan. How may I assist you?

USER: As I'm not feeling well, I can't take the flight . Could you please help me in cancelling my reservation?

ASSISTANT: Sure, hold on for a moment.

USER: Ok.

ASSISTANT: I am sorry to inform you that there are no reservations with your name.

USER: No problem, as I already wanted to cancel the reservation. Thank you for your time.

ASSISTANT: Thank you, have a great day ahead.