You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I am Elizabeth Robinson, would like to attend a party at LAS. So please book a flight on 08/01.

ASSISTANT: Sure, may I know your trip dates?

USER: I would like to return on 08/03.

ASSISTANT: Can you share your source airport code?

USER: My source airport code is AUS.

ASSISTANT: Give me a minute.

USER: Sure.

ASSISTANT: There is a connecting flight with number 1000, the fare is 100 in airline Southwest.

USER: Yes, proceed with booking.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.