You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Richard Thompson. I want to book a flight ticket with a price limit of 200 to Austin.

ASSISTANT: Ok, when do you want to start your journey?

USER: I would like to fly on 01/14 and return date on 01/16.

ASSISTANT: Can you please provide me your source and destination airport codes?

USER: I am planning to do boating in Lake Austin in TX - AUS and my source from DC - DCA.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, I found a UA airline, flight number: 1010, price: 100 with one connection.

USER: You can proceed to booking a flight ticket.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks for your response.

ASSISTANT: Thanks for opting us.