You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Karen Martinez here.

ASSISTANT: How may I help you?

USER: I am looking for a flight with price below 5000. Can you book it?

ASSISTANT: Sure, please help me with your airport codes.

USER: My airport codes for boarding the flight are ATL to AUS.

ASSISTANT: Ok, could you let me know your travel dates?

USER: My travelling dates for journey are 10/07 to 10/09.

ASSISTANT: Please hold on.

USER: Sure.

ASSISTANT: I found a flight 1018 of Frontier airlines matches with your preferences, can I proceed?

USER: Sure, you can book the flight ticket I am ok with the airline.

ASSISTANT: Your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.