You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Margaret Lopez here, I would like to visit Washington, can you please help me to book a ticket from ORD to DCA?

ASSISTANT: May I know your preferred journey dates?

USER: Sure, my preferable dates of travel is from 08/14 to 08/16.

ASSISTANT: Please wait for a moment.

USER: Ok, take your time.

ASSISTANT: Southwest airlines with flight number 1003 is available on your route with 1 connection.

USER: Ok, please proceed with this ticket booking.

ASSISTANT: Your ticket is booked with price 100.

USER: Thank you for your assistance in reserving my ticket.

ASSISTANT: Most welcome, have a safe journey.