You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you for today?

USER: My travelling is from PA-PHL to AZ-PHX, can you please help me to book a flight ticket for me?

ASSISTANT: Sure. May I know your preferred travelling dates?

USER: Ok, my dates of trip is from 06/16 to 06/18.

ASSISTANT: Thank you, please give me a moment to check the best availability of flights.

USER: Sure, take your time.

ASSISTANT: Southwest airline is available with 1 connection and the price limit is 200.

USER: Ok, please book it.

ASSISTANT: Sure, on whose name you would like me to book the ticket?

USER: My name is Stephen Davis.

ASSISTANT: Ok, your ticket has been confirmed Stephen. Thank you for reaching us.

USER: Thank you for your help in reserving my ticket.

ASSISTANT: You are most welcome.