You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How may I assist you?

USER: I would like to cancel my reservation as I am unwell. Can you please do that for me?

ASSISTANT: Please provide your name?

USER: Sure, my name is Melissa Campbell.

ASSISTANT: Ok. Reservation found.

USER: Please cancel it.

ASSISTANT: Reservation is cancelled.

USER: Thank you very much.

ASSISTANT: Thanks.