You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Kathleen Adams. Can you help me to book a flight on 01/12 and 01/14?

ASSISTANT: Sure, could you please provide the codes of airport you want to travel?

USER: My airport codes are ORD and AUS.

ASSISTANT: Ok, please wait a moment I will check for the best services on your dates.

USER: Sure, my price limit is 500.

ASSISTANT: Ok, there is a flight 1023 in UA airline matching your details with price 100. Shall I proceed?

USER: Yes, proceed with booking.

ASSISTANT: Ok, your booking is done.

USER: Thank you.

ASSISTANT: You are welcome, have a safe journey.