You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am karen Adams.

ASSISTANT: Adams, how can I help you at this moment?

USER: Can you book a ticket from OAK to LAS to meet my friends in Las Vegas.

ASSISTANT: Sure, I will help you with booking, may I know your travelling dates?

USER: My travel dates are 08/28 and return on 08/30.

ASSISTANT: Ok, please hold on for a moment.

USER: Take your time but revert back me with best flight.

ASSISTANT: There is a flight in AA airline with connection 1 price 200 as per your details, can I proceed?

USER: Please proceed for booking.

ASSISTANT: Your ticket is confirmed by flight number 1021.

USER: Thank you for your help.

ASSISTANT: Most welcome.