You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How shall I help you?

USER: I am Stephen Robinson. I want to book a flight ticket to meet my nephew in Oakland, could you help me in booking a flight ticket?

ASSISTANT: Sure. Please provide me travelling dates?

USER: I would like to fly on 09/22 and return on 09/24.

ASSISTANT: Please specify airport codes?

USER: My source is Washington, DC - IAD and destination code is CA - OAK.

ASSISTANT: Connecting flight 1011 is available with airline Southwest, for price 100.

USER: You can proceed to booking.

ASSISTANT: Flight ticket to Oakland is booked.

USER: Thank you for your help.

ASSISTANT: Thanks.