You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Stephen Mitchell.

ASSISTANT: How can I assist you?

USER: I am planning to visit Los Angeles, will you help me in booking the flight ticket from DCA to LAX?

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

USER: My travelling dates are Sept 01 and Sept 03.

ASSISTANT: Ok, do you have any other specifications?

USER: I needa a flight with single connection.

ASSISTANT: Ok, please wait.

USER: Ok, I will wait for your response.

ASSISTANT: Southwest airlines is providing a direct flight on that route with ticket fare of 100, shall I proceed for booking?

USER: Sure, you can proceed with the booking.

ASSISTANT: I have successfully booked you a ticket in flight-1028, have a safe journey.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.