You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: My name is Justin Brown. Due to weather conditions, I want to change my reservation.

ASSISTANT: Nice to meet you Justin. Ok, hold on for a moment.

USER: Ok.

ASSISTANT: Sorry to say this, we could not find a flight under your name.

USER: Ok, thank you for the information.

ASSISTANT: Thank you.