You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you help me to book a flight ticket from IAD to AUS?

ASSISTANT: Sure, please share your planned travel dates?

USER: I will start on Jan, 3 and return on Jan, 5.

ASSISTANT: Do you have any connection limit?

USER: I would prefer single connection.

ASSISTANT: Any other preferences?

USER: I need to travel in economy class.

ASSISTANT: Can I have your name please?

USER: Joseph Rodriguez here.

ASSISTANT: Frontier airlines flight 1021 available with connection and fare is 100, shall I confirm this economy class flight?

USER: Please make it confirm.

ASSISTANT: Ok, your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for opting us.