You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What type of services that you are looking from my side?

USER: I have to go for AUS to visit famous fort, unfortunately I am suffering with fever. So, can you please cancelling my recent reservation?

ASSISTANT: Oh! it's sad to hear. Our service is for helping only.

USER: Myself Margaret Mitchell, please search my ticket with that name.

ASSISTANT: Ok, please wait Mitchell, I will check for it.

USER: Ok.

ASSISTANT: No ticket has found on your name in our data sheet to cancel your booking.

USER: Ok, fine not an issue. Thank you for your information.

ASSISTANT: Ok, is there any other help needed?

USER: No thanks.

ASSISTANT: Ok, thank you for your time in reaching our agency.