You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am planning to have a round trip in Austin, can you please book me a ticket from AUS to AUS?

ASSISTANT: Please provide me your journey dates for enhanced search.

USER: My preferable journey dates are from 06/19 to 06/21.

ASSISTANT: I found a flight with AA airlines available with price 100. Shall I book the ticket for you?

USER: Please book the ticket with my name Scott Nelson.

ASSISTANT: Your ticket is confirmed and the flight number is 1004.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for contacting us.