You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, what can I do for you today?

USER: I am Emily Roberts.

ASSISTANT: OK.

USER: I would like to visit Korean war veterans memorial on weekend, which is at Washington DC-DCA. Can you please book a connected flight for me?

ASSISTANT: Sure, I can help you easily.

USER: Thank you.

ASSISTANT: Please forward your journey dates?

USER: My journey start on 01/28 and intend to return on 01/30.

ASSISTANT: From where you would like to start from?

USER: My source point is Denver, DEN.

ASSISTANT: An UA airline is running 1018 flight on your route with a less fare 100. Shall I make it confirm?

USER: Ok, proceed with the booking.

ASSISTANT: Ok, your booking has been reserved successfully.

USER: Thank you for your assistance in booking.

ASSISTANT: Thanks for reaching us, have a nice day.