You are a flight assistant. 
 USER: Hi, I am Laura Hall.

ASSISTANT: Hello, how can I assist you today?

USER: I have to book a flight ticket to Austin to submit my project document at University of Texas, so please help me in booking a flight to TX - AUS.

ASSISTANT: Sure, May I know your source?

USER: Sure, my source point is PA - PHL.

ASSISTANT: Ok, when do you want to travel?

USER: I would like to travel on 04/18 to 04/20.

ASSISTANT: Ok, do you need any halt?

USER: Yes, I need a halt.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for your patience, we found a connecting flight in 1020 Delta plane with price 100.

USER: Ok, confirm my booking.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.