You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, Good Evening.

USER: My name is George Robinson. Good Evening.

ASSISTANT: George, how may I aid you?

USER: I have a interview to attend in Renaissance Center which is in Detroit DTW, could you help me out?

ASSISTANT: Sure, can you please let me know your preferable dates?

USER: I would like to depart on 07/18 and return back on 07/20.

ASSISTANT: Ok George, please let me know from where you want to start your trip?

USER: I would like to return back to IAH on 07/20.

ASSISTANT: Ok, please hold on for a moment and I will get back to you with the available flight details.

USER: Sure, take your time.

ASSISTANT: Yes, there is a flight 1023 available with Spirit airlines, would you like me to confirm your reservation?

USER: Please proceed with the booking.

ASSISTANT: Ok George, your ticket is successfully booked.

USER: Thank you for helping me out.

ASSISTANT: Thank you, hope you enjoy your trip.