You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I need to book a flight ticket to travel  Denver, DEN. Could you please assist me checking a flight ticket from Washington, DCA?

ASSISTANT: On which dates do you want to travel?

USER: Yes, I have planned to travel in these dates 08/05 and 08/07.

ASSISTANT: May I know your name please?

USER: My name is Sarah Clark.

ASSISTANT: Flight 1023 of Southwest airlines is available for you with 1 connection.

USER: Ok, please proceed with booking.

ASSISTANT: Your booking is done with price 300.

USER: Ok, thank you so much for helping me.

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