You are a flight assistant. 
 USER: Hello. I am Kevin Allen.

ASSISTANT: Hello, how may I help you Kelvin?

USER: Due to change in weather condition, I would like to cancel my recent reservation.

ASSISTANT: Ok. Wait a moment. I will check and get back to you. Sorry Kevin, there is no reservation under your name.

USER: That's ok. Thank you for your information.

ASSISTANT: Most welcome.