You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: On my business trip I need to go Chicago, could you book a ticket ?

ASSISTANT: Sure, can I know your name please?

USER: My name is Stephanie Carter.

ASSISTANT: May I know the travel details please?

USER: Sure, I would like to departure on 09/09 and returning might be on 09/11.

ASSISTANT: Can you provide the airport codes please?

USER: Sure, the source is from AUS and destination should be ORD.

ASSISTANT: I found a flight for you with single connection and price is 100. Shall I book it?

USER: OK, thank you for information. It is exactly matched to my budget . So ,go a head with booking .

ASSISTANT: I have booked your ticket with flight number 1005 and airline is Southwest.

USER: OK, thank you for your service.

ASSISTANT: Thank you for reaching us, have a safe journey.

USER: Thank you.