You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I want to attend Earth and Nature festivals at Oakland, with the fare of 200. Can you help me in booking a flight ticket in the name of Jessica Young?

ASSISTANT: Sure, could you please provide your journey dates?

USER: I would like to fly on 09/03 and return at 09/05.

ASSISTANT: May I know your airport codes please?

USER: My origin is from IAD, and my destination is at OAK.

ASSISTANT: Please wait for a while, I will check and let you know.

USER: Ok.

ASSISTANT: We found a flight with Southwest airlines, flight number is 1017 with one connection and price is 100. Shall I proceed?

USER: Sure, you can proceed.

ASSISTANT: Ok, your ticket has been booked.

USER: Thanks for your kind service.

ASSISTANT: Thanks for choosing us.