You are a flight assistant. 
 USER: Hello, I am Lisa Harris.

ASSISTANT: Hello, how can I aid you?

USER: I want to book a ticket under price 200 to visit some places at Austin, TX - AUS. Can you please book a ticket on 11/25?

ASSISTANT: Sure, do you need a return ticket too?

USER: Yes, I intend to return on 11/27.

ASSISTANT: May I have your origin please?

USER: My origin is Dallas & Fort Worth, TX - DFW.

ASSISTANT: There is a connecting flight from your source with a way station, flight number is 1018. Shall I proceed with booking?

USER: Sure, please proceed.

ASSISTANT: Your ticket has been confirmed with Spirit airlines.

USER: Thank you.

ASSISTANT: Thanks for choosing us.