You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

USER: I am Brian Wright. Can you please help me in booking a flight ticket from Washington. DCA to IAD?

ASSISTANT: When you are willing to travel?

USER: My journey dates are from Mar 28 to Mar 30.

ASSISTANT: Do you have any class preference?

USER: I am ok with any class.

ASSISTANT: Do you have any other requirements?

USER: My return time is afternoon.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found 1019 Delta airlines with single connection with economy class and arrival time is 13:00 PM. Shall I proceed with the booking.

USER: Sure, you can proceed for booking.

ASSISTANT: Your, booking has been confirmed.

USER: Thanks for your assistance.

ASSISTANT: Thank you for reaching us.