You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am planning to visit Austin, can you please book me a ticket from ORD to AUS?

ASSISTANT: May I know your travel dates?

USER: My preferable journey dates are Oct 25 and Oct 27.

ASSISTANT: Do you have any connection  preferences? May I know your name please?

USER: I prefer connecting flight for this trip. My name is Mary Collins.

ASSISTANT: Is there any other concern?

USER: No, thanks for asking.

ASSISTANT: Frontier airlines is providing the connecting flight on this route , in economy class and the fare of 100.

USER: Please book my ticket in this flight.

ASSISTANT: Your reservation is confirmed with the flight 1023.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you.