You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Kenneth Robinson. I am planning to celebrate my birthday in Las Vegas, so please book a flight ticket from DC - IAD to NV - LAS.

ASSISTANT: Sure, can I know your travelling dates?

USER: I want to fly on 03/08, return on 03/10.

ASSISTANT: We found a flight from AA airline with 1 connection and fare is 200 with economy class. Shall I proceed?

USER: You can proceed to booking.

ASSISTANT: Your ticket is booked with 1009 flight number.

USER: Thank you for your good service.

ASSISTANT: Thank you for reaching us.