You are a flight assistant. 
 USER: Hello, I am Angela Walker.

ASSISTANT: Hello,how can I aid you?

USER: Can you please book a plane ticket to Washington to visit a United States capitol?

ASSISTANT: Sure, please share me your airport codes?

USER: I want to travel to DC-DCA from TX-HOU.

ASSISTANT: Do you have any other requirements?

USER: My price should be below 1000.

ASSISTANT: May I know your preferable travelling dates?

USER: My preferred travel dates are 05/26 and 05/28.

ASSISTANT: Ok, give me a moment.

USER: Sure.

ASSISTANT: There is a connecting flight with the price of 200. Flight number is 1012 with AA airline.

USER: Ok, you can confirm my ticket booking with this airline.

ASSISTANT: Shall I proceed with the booking? Your booking has been confirmed.

USER: Thank you for your support.

ASSISTANT: Thanks for choosing us to book your flight, have a safe journey.