You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I want to attend for an interview in Atlanta, so please book a flight ticket from OAK to ATL.

ASSISTANT: Sure, please provide your travelling dates.

USER: I will start on Mar 18, return on Mar 20.

ASSISTANT: Ok, Do you prefer direct flight or connected flight?

USER: I want a flight with one connection.

ASSISTANT: Ok, Do you have any class preference?

USER: No.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a connecting flight in 1004 Frontier Airlines with a fare of 200. Can I proceed for booking?

USER: Ok, proceed to booking.

ASSISTANT: Ok, May I know your name for booking purpose?

USER: My name is Stephen Parker.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.