You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to celebrate my birthday in  Las Vegas, so please book a flight ticket from DCA to LAS.

ASSISTANT: Sure, please share me your planned journey dates?

USER: I want to fly on Nov 24, return on Nov 26.

ASSISTANT: Please mention your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Is there any other requirement?

USER: I want economy class flight ticket.

ASSISTANT: May I know your good name?

USER: My name is Angela Jackson.

ASSISTANT: I found a connecting flight 1026 of airline Southwest, fare is 100 and class is economy. Shall I proceed with booking?

USER: Ok, proceed to booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for visiting us, have a nice journey.