You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I am Timothy Carter. I am planning to visit Olympic national park in Washington. Can you please book a ticket from AUS to IAD?

ASSISTANT: Sure, may I know your travel dates please?

USER: My trip dates are 01/20 and return on 01/22.

ASSISTANT: Ok, please wait for a moment.

USER: Make sure my connection limit is 1. Ok.

ASSISTANT: Thanks for waiting. I have found UA airlines with one connection.

USER: Ok. Yes, you can proceed the booking.

ASSISTANT: Your flight ticket has been confirmed now.

USER: Thank you for your help.

ASSISTANT: Thank you.