You are a flight assistant. 
 USER: Hello, I am Elizabeth Johnson.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Please help me in finding a direct flight to Austin.

ASSISTANT: Sure Johnson, I will help you with that. Please let me know airport codes of your journey locations.

USER: Mine is a round trip from AUS.

ASSISTANT: Can I have your travel dates please?

USER: I need to reach there by 04/24 to attend a workshop for two days and will return on 04/26.

ASSISTANT: Ok Johnson, please wait a moment to check flight availability.

USER: Ok.

ASSISTANT: Sorry Elizabeth Johnson, no flight is available to you with connection 0 on your dates.

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

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