You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Barbara Wilson.

ASSISTANT: How can I help you?

USER: I want to book a flight ticket from LAS to AUS. Can you find a flight ticket for me?

ASSISTANT: Sure, we are happy to help you. Can you please help me with your travelling dates?

USER: Ok, my planned trip dates are on Jan 20 and back on Jan 22.

ASSISTANT: Do you need any halt in between journey?

USER: Yes, I need one halt.

ASSISTANT: Is there any other specifications?

USER: Yes, I need a normal cost flight.

ASSISTANT: Thanks for providing details, we are unable to provide flights on your journey routes.

USER: Ok, not an issue. Thank you for your help.

ASSISTANT: Thank you for reaching us.