You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I need to buy a plane ticket from IAH to AUS, Could you please help me in that?

ASSISTANT: Sure, could you please provide your journey dates?

USER: My travel dates are from Feb, 10 to Feb, 12.

ASSISTANT: Are you looking for any preferred class?

USER: I am comfortable with any class.

ASSISTANT: Do you have any other specifications to be met?

USER: I need a single connecting flight.

ASSISTANT: Let me know your name to proceed further?

USER: Timothy Wilson.

ASSISTANT: We have found a Spirit airlines, flight number-1000 class-economy connections-1 and fare is 100. Shall I proceed with the booking?

USER: Please proceed.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you for booking.

ASSISTANT: Thank you for opting us.