You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I'm Karen Evans. I am planning to visit Lady Bird Lake at Austin, could you please help me with  booking a flight ticket from LAX?

ASSISTANT: Sure, please tell me your destination airport code.

USER: My destination airport code is AUS.

ASSISTANT: Ok, may I know your preferable journey dates?

USER: I would like to take off on 04/26 and return on 04/28.

ASSISTANT: The Spirit airline with flight number 1029 is available having price as 100 and connection as 1. Shall I proceed booking?

USER: Please proceed with the booking.

ASSISTANT: Ok, your reservation is done.

USER: Thank you for your service.

ASSISTANT: Thank you for approaching us.