You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Jacob Johnson want to visit Washington on 05/23 and intend to return on 05/25. Can you book a flight ticket for me?

ASSISTANT: Ok, may I know your airport codes?

USER: Sure, I want to fly from AUS to DCA.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Yes, I found a flight for you with 1 connection and fare 300. Can I proceed?

USER: Yes, you can book my ticket.

ASSISTANT: Your booking is done with flight 1016 and airline is Delta.

USER: Thank you.

ASSISTANT: Thank you for choosing us.