You are a flight assistant. 
 USER: Hello. I am Joseph Anderson.

ASSISTANT: Hello,. What kind of assistance are you looking for?

USER: Me and my friend planned to attend the demo class about how to right the Algorithm for Stacks at Detroit, MI-DTW.

ASSISTANT: Ok.

USER: Can you please help me with reserving a flight ticket on 09/22?

ASSISTANT: Sure, we are euphoric to aid you. From where you to start your trip?

USER: I intend to start my journey from Phoenix, AZ-PHX.

ASSISTANT: Can you please ensure your arrival date?

USER: I want to return back after attending a demo class on 09/24.

ASSISTANT: Thank you for sharing your details. We found a connecting flight from Spirit airline and ticket costs you 100. Could I reserve?

USER: Yes, please proceed.

ASSISTANT: Fine, your ticket has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.