You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: I am Nicole Mitchell from Oakland.

ASSISTANT: Welcome to flight booking agency Nicole.

USER: Thank you, I have to go Detroit for attending a summit meeting there, can you please book a flight ticket for me on 11/02?

ASSISTANT: Sure, I will help you with that. Can you please provide your origin and destination airport code for booking?

USER: Thanks, I would like to fly from OAK airport and destination airport is DTW because these two airports are very convenient for me to travel.

ASSISTANT: Ok, is there any return trip that you are planing?

USER: Yes, please book my return ticket also on 11/04.

ASSISTANT: Please wait a moment to check the flights availability.

USER: Ok.

ASSISTANT: Based on your information, Delta airline is ready to serve you with 1 connection with a minimum fare of 200 is available for you. Shall I proceed with this?

USER: Please confirm this flight ticket for me.

ASSISTANT: Ok, your ticket has been booked in flight number 1008.

USER: Thank you for your service.

ASSISTANT: Welcome.