You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: My brother want to go Austin in this week, so can you help him by booking a flight from LAX to AUS?

ASSISTANT: Sure, I am happy to help you. When are you planning to make your journey?

USER: Please book a flight ticket on Sept 13 and 15.

ASSISTANT: Do you prefer any lay by in between journey?

USER: Please search for a connecting flight for this trip.

ASSISTANT: May I know your class preference?

USER: Fine with any class to fly.

ASSISTANT: Is there any other specifications for you?

USER: No.

ASSISTANT: Can I have your good name?

USER: Please book a flight ticket under my brother name Lisa Martinez.

ASSISTANT: Thanks for providing details, there is a connecting flight found in Southwest airline with a fare of 100 which departs at 14:00 and return at 1:00. Shall I proceed for booking?

USER: Proceed with booking.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1029.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.