You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am planning to visit Lady Bird Lake at Austin, can you please book me a ticket from Chicago?

ASSISTANT: Sure, I will help you out in booking. Can you please let me know your travelling dates?

USER: My preferable journey dates are from 02/18 to 02/20.

ASSISTANT: May I know your airport codes?

USER: My nearest origin airport code is ORD and nearest destination airport code is AUS.

ASSISTANT: Ok, please wait a moment. May I know your good name?

USER: My name is Ryan Robinson.

ASSISTANT: There is a flight with connection 1, can I proceed with this flight?

USER: Please book my ticket.

ASSISTANT: Ok, your ticket has been booked. Thank you for choosing our services.

USER: Thank you for booking my ticket.