You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Justin Evans here.

ASSISTANT: How can I aid you at this moment?

USER: I would like to visit Minneapolis to meet my grand parents over there, can you please help me out with booking of a flight ticket to go there?

ASSISTANT: Sure, I am happy to help you in booking flight ticket.

USER: Thank you.

ASSISTANT: Can you please mention your travel dates for booking flight ticket?

USER: Sure, my departure date is 07/17 and I would like to return on 07/19.

ASSISTANT: May I know your preferable airport code names for further process?

USER: My nearest genesis airport code is OAK and destination airport code is MSP.

ASSISTANT: Just give me a moment, I will check is there any flight available or not in this route as per your requested dates.

USER: Ok, take your time to check but try to bring a best flight in my route.

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: Ok, I am comfortable with this, you can proceed with booking.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1002.

USER: Thank you for your kind help in booking of my ticket.

ASSISTANT: Thank you for reaching us, have a nice day.