You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you at present?

USER: Could you please help me in booking a flight ticket from IAD to OAK?

ASSISTANT: Sure, Let me know your name please.

USER: My name is Joshua Lewis.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: May I know your depart and arrival dates?

USER: My travel dates are Jan 2nd and Jan 4th.

ASSISTANT: Ok, Is there any other requirements?

USER: Yes, I am looking for a flight with one connection.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We are glad to inform you that, we found a flight in 1006 United Airline with a fare of 100 and single connection. Can I proceed for booking?

USER: Yes, proceed.

ASSISTANT: Ok, your ticket has been reserved.

USER: Thank you for the help.

ASSISTANT: Thank you for opting our service.