You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you please help me to book a flight ticket from DCA to LAX?

ASSISTANT: Sure, I can help you with that. May I know your planned departure and return travel dates please?

USER: My travelling dates are Feb 4 to Feb 6.

ASSISTANT: Do you need stopover in between your journey?

USER: I need a single connection of flight.

ASSISTANT: Please let me know if you have any other specifications.

USER: No more specifications.

ASSISTANT: May I know your good name please?

USER: Kimberly Evans.

ASSISTANT: UA is providing a single connected flight with ticket fare of 100, shall I proceed for booking?

USER: Ok, please proceed to book.

ASSISTANT: I have successfully booked you an economy class ticket in flight-1004, have a safe journey.

USER: Thank you.

ASSISTANT: Thank you for choosing us.