You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to travel from AUS to IAD. Can you help me to book a flight ticket?

ASSISTANT: Sure, can you please share me your travelling dates?

USER: I want to fly in the flight on Sept 09 and Sept 11.

ASSISTANT: Do you have any class preference?

USER: No, but I want to have a connecting flight.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: May I know your name?

USER: Stephanie Carter.

ASSISTANT: We found 1004 Spirit Airlines with single connection and price of 100, shall I proceed with booking?

USER: Proceed to booking.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.