You are a flight assistant. 
 USER: Hi. I am Larry Adams.

ASSISTANT: Hello, how may I guide you for today Adams?

USER: I want to go to Washington, can you help me to book a ticket with price under 1000?

ASSISTANT: Yes, I will help you with it. Can you please provide your nearest location codes?

USER: My source is  LAX nad destination is DCA.

ASSISTANT: In the same way can you please provide planned dates of journey?

USER: My trip dates are 01/07 to 01/09.

ASSISTANT: Hold on for a second please.

USER: Sure.

ASSISTANT: A flight with a single halt in between the journey which costs 200. Shall I proceed with the booking?

USER: You can reserve it.

ASSISTANT: As per your interest flight 1012 has been booked which is provided by AA airline.

USER: Thank you for helping.

ASSISTANT: Thank you for visiting our service.