You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I serve you today?

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

ASSISTANT: Sure, we are here to make your journey comfort. May I know if you have any depart and return timings?

USER: I want to return at morning from DCA.

ASSISTANT: Please share your planned travelling dates to proceed further.

USER: My travelling dates are Mar 13 and 15.

ASSISTANT: Is there any other preferences that you would like to add before booking?

USER: No.

ASSISTANT: Before booking, may I know your name please?

USER: My name is Donald Davis.

ASSISTANT: Thank you for sharing your journey details, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, we found an economy class ticket providing by Frontier airline with the flight number-1014. Shall I book the ticket?

USER: Proceed with booking.

ASSISTANT: Your ticket has been confirmed with the connecting flight.

USER: Thank you for your help.

ASSISTANT: It's pleasure to serve you.