You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you at this moment?

USER: Myself Brenda Hernandez. I would like to go to Cloud Gate in Chicago, so could you please book a ticket for me?

ASSISTANT: Can you please mention your  preferable travel dates?

USER: Sure, I would like to go on 02/07 and return back on 02/09.

ASSISTANT: May I know your airport code names for further process?

USER: My source and destination airport codes are DCA and ORD.

ASSISTANT: Ok, please wait a moment.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: Sure. Based on your information, UA airline is ready to serve you with 1 connection with a minimum fare of 100 is available for you. Shall I proceed with this?

USER: Ok, please proceed for further.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1000.

USER: Thank you for booking.

ASSISTANT: You are welcome.