You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to book a ticket to attend a meeting at AUS. Can you please help me out from LAX?

ASSISTANT: Sure, we are here to help you. Kindly share your travel dates.

USER: I am planning to travel on Mar 28 and return back on Mar 30.

ASSISTANT: Do you have any connection limit?

USER: No, my return time should be afternoon.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: I am Katherine Harris. Thank you for your service.

ASSISTANT: Thanks for reaching us.