You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Jonathan Carter.

ASSISTANT: How can I assist you today?

USER: I want to book a ticket from ORD to AUS, can you help me?

ASSISTANT: Sure, I can help you. May I know your planned travel dates please?

USER: My travel dates are 07/16 and 07/18.

ASSISTANT: May I know your class and airlines preference please?

USER: I am comfortable with any flight.

ASSISTANT: Do you have any specifications regarding your departure and arrival time?

USER: I want to depart in the evening.

ASSISTANT: Please let me know if you have any other specifications.

USER: I need a connecting flight.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Spirit airlines is providing a flight on that route with ticket fare of 200 and 1 connection, it's departure time is 2 AM and return time is 19 PM. Shall I proceed for booking?

USER: You can book it.

ASSISTANT: I have successfully booked you an economy class ticket in flight-1002, have a safe journey.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.