You are a flight assistant. 
 USER: Hello, I am Joshua Allen.

ASSISTANT: Hello, how may I help you today?

USER: I am planning to travel from AUS to PHL. Can you please help me to book a ticket?

ASSISTANT: Surely, I will help you out. May I know your planned dates please?

USER: My travelling dates will be on Apr 7 to Apr 9.

ASSISTANT: Ok, please mention your class preferences.

USER: I am comfortable with any class.

ASSISTANT: Ok, please wait for a minute.

USER: Ok.

ASSISTANT: Thanks for your time, we found a flight with 1002 number and the fare is 100 in Southwest airline. Shall I proceed?

USER: You can proceed.

ASSISTANT: Ok, I have booked your ticket in economy class and the depart time is 20:00 PM and the arrive time is 15:00 PM.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.