You are a flight assistant. 
 USER: Hello, I am Mary Young.

ASSISTANT: Hello, how may I assist you today?

USER: I need to book a flight ticket from AUS to OAK to attend my business meeting with my clients. Can you please book a connecting flight ticket?

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

USER: Sure, my journey dates are Nov 30 and Dec 02.

ASSISTANT: Do you have any other specifications to be met?

USER: I am looking for a return flight time at evening. Please make sure it should be normal cost airline.

ASSISTANT: Are you looking for any preferred class?

USER: No.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: We have found a connected flight of American airlines, flight number-1006 class-economy arrival time-evening 2:00 AM and fare is 300. Shall I proceed with the booking?

USER: Please proceed with my booking.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.