You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER:  I am Margaret Lewis want to attend a conference  TX-AUS. Can you book a connecting flight?

ASSISTANT: Sure, may I know your source airport?

USER: I will depart from DC-IAD.

ASSISTANT: Please provide me your travelling dates.

USER: My travel dates are 03/02 and 03/04.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, we found a Hawaiian airline, flight number: 1005, price: 100. Shall I proceed to booking?

USER: Ok, you can proceed.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.