You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I would like to travel Austin to visit my grand mother house. So, can you please help me to book a flight ticket from Seattle, WA - SEA?

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

USER: Sure, my travel dates are 11/08 and 11/10.

ASSISTANT: Please let me know airport code of your destination.

USER: My destination code is AUS.

ASSISTANT: Ok, please wait a moment.

USER: Ok, sure.

ASSISTANT: May I know your good name please for documentation purpose?

USER: Sure, myself Dorothy Jackson.

ASSISTANT: Sorry Dorothy, no flight is available to you on your dates.

USER: Not an issue, thank you for the information.

ASSISTANT: My pleasure. Thank you for choosing us, have a great day.