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

ASSISTANT: Hello, how may I help you?

USER: I want a direct flight to Philadelphia.

ASSISTANT: Ok, please provide your journey dates.

USER: My journey dates are from 10/13 to 10/15.

ASSISTANT: I want to know your airport codes.

USER: My airport codes are from AUS to PHL. Make sure that price limit should not exceed 200.

ASSISTANT: Yes, I found a flight in AA airline with the number of 1001 matches your requirements.

USER: Yes, proceed booking. Thank you for your help.

ASSISTANT: Ok, your ticket has been booked with the price of 200.

USER: You made my job easy.

ASSISTANT: Thanks for opting us.