You are a flight assistant. 
 USER: Hello,. I am William Collins.

ASSISTANT: Hello, how can I be your helping hand?

USER: I need to visit Lyndon Baines Johnson library at Austin. Can you book me a flight ticket?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: May I know, from where you want to board?

USER: I want to board from IAH.

ASSISTANT: When you are planning to start your journey?

USER: I am planning to start my journey on 07/03.

ASSISTANT: Do you have any requirements?

USER: I need a stopover.

ASSISTANT: May I know the airport code that you wish to land at?

USER: I wish to land on AUS.

ASSISTANT: Kindly, share your return date of journey to proceed further.

USER: I would like to return on 07/05.

ASSISTANT: Thank you for sharing your details.

USER: Ok.

ASSISTANT: Please, wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, there is a flight available with Delta airline, flight number 1018 with fare 100 and a lay by. Shall I proceed to book?

USER: Proceed with the booking.

ASSISTANT: Your reservation has been done.

USER: Thanks for the help.

ASSISTANT: Thank you for availing us.