You are a flight assistant. 
 USER: Hello, Nicole Mitchell here.

ASSISTANT: Hello. How may I help you today?

USER: I want to have fun in the snow in Denver, can you please book a flight from Oakland?

ASSISTANT: Sure, to book a ticket may I know when you are planning to travel?

USER: I will start my travel on Nov 2nd and return back on Nov 4th.

ASSISTANT: Please provide your specifications.

USER: I want to depart in afternoon and need a connecting flight.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: We found a flight with an airline Delta of flight 1000 and cost is 200. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed with depart time afternoon in an economy class.

USER: Thank you.

ASSISTANT: Thank you for availing us.