You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Charles Evans. I want to attend a interview at Washington. Help me in booking my flight ticket within 200 price limit?

ASSISTANT: Sure, we are here to help you. Can you share me your trip dates please?

USER: I would like to start on 12/23.

ASSISTANT: May I know your journey locations please?

USER: I am planning to start from WA-SEA, my landing airport code is DC-IAD.

ASSISTANT: Let me know your return date?

USER: I would like to return on 12/25.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: We found couple of connections AA airline under fare of 100. Shall I proceed for booking?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed. Thanks for connecting us.

USER: Thank you for your help.