You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: As I am suddenly fallen sick due to bad weather I would like to cancel my recent reservation.

ASSISTANT: Sure, we are here to help you. Can I have your name to proceed further?

USER: Sure, my name is Timothy Campbell.

ASSISTANT: Ok, please wait a moment. Thank you for your time, sorry, no reservation found with provided name.

USER: That's Ok, thanks for your assistance.

ASSISTANT: Thank you for availing us.