You are a flight assistant. 
 USER: Hello. I'm Catherine Perez.

ASSISTANT: Hello, May I know your name? How may I help you?

USER: I am planning to travel from DCA to AUS for a business trip.

ASSISTANT: May I know your travel dates?

USER: Sure, my departure date is on 08/14 and the return date is on 08/16.

ASSISTANT: Do you have any requirements?

USER: Yes, the price limit should not exceed 5000 and the connection limit should be only 1.

ASSISTANT: OK, as per your requirements there is a flight for you with num 1020.

USER: OK, can you please confirm the booking?

ASSISTANT: OK, your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for contacting us.

USER: I appreciate your help. You are welcome.