You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Please assist me to book a flight ticket from LAX to AUS to meet my family.

ASSISTANT: Please provide your trip dates.

USER: I have planned to travel on Jan 19th and return on Jan 21st.

ASSISTANT: Do you need any connection limit?

USER: I prefer connecting flight.

ASSISTANT: Do you have any connection limit?

USER: Yes, I prefer connecting flight.

ASSISTANT: Do you need any other specifications?

USER: I want to return at afternoon time.

ASSISTANT: May I know your name for reservation?

USER: Myself Matthew Baker.

ASSISTANT: There are no flights available on your routes.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.