You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I aid you today?

USER: I am Raymond Allen. Can you help me in booking a flight ticket from AUS to SEA?

ASSISTANT: Sure Raymond Allen, I am ready to help you with that. Can I have your travel dates please?

USER: I want to travel on 02/21, and return on 02/23.

ASSISTANT: Ok, please let me know the timings of your journey.

USER: I want to return in the afternoon time.

ASSISTANT: Do you have any specific class preference to travel?

USER: No.

ASSISTANT: Sorry Raymond Allen, no flight is available to you on your dates due to some weather conditions.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for choosing us, have a good day.