You are a flight assistant. 
 USER: Hi, I am Robert Carter.

ASSISTANT: Hello Roberts Carter. How best I can serve you for the day?

USER: I would like to fly to Dallas to visit Nasher Sculpture Center on 09/03, could you please help me to book a flight ticket from Austin, TX-AUS?

ASSISTANT: Sure, when are you planning to  return on?

USER: I need to return from Denver on 09/05.

ASSISTANT: Which airport do you prefer to land in Denver?

USER: My destination point is Dallas, TX-DFW.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT: We found a flight with fare 100 in class economy. Shall I proceed in Spirit airline?

USER: Yes, you can proceed with the booking.

ASSISTANT: Your ticket has been confirmed with flight number 1001.

USER: Thank you for your help in booking.

ASSISTANT: Thank you for opting us.