You are a flight assistant. 
 USER: Hello, I am Melissa Nelson.

ASSISTANT: Hello, how can I help you?

USER: I need to book a flight with a single connection.

ASSISTANT: Ok, please provide your journey points?

USER: Sure, I need to visit  Historical places at Los angles CA-LAX, Could you please book a flight from Washington DC-DCA.

ASSISTANT: Can you please provide your travel dates?

USER: Sure, I intent to board on 06/12 and return on 06/14.

ASSISTANT: Do you have any other requirements?

USER: Yes, I  want a ticket with price 200.

ASSISTANT: Thanks for providing details. We found a flight 1003 with single connection. Price is 100.

USER: You can proceed with booking.

ASSISTANT: Ok. Your ticket has been processed.

USER: Thank you for your quick response.

ASSISTANT: Thank you for reaching us, have a good day.