You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Laura King.

ASSISTANT: How may I assist you?

USER: I am planning to attend music concert at PHL, can you please help me with booking a flight ticket from AUS?

ASSISTANT: Sure, I will help you. May I know your depart and arrival dates?

USER: Sure, I would like to take off on Mar 18 and return on Mar 20.

ASSISTANT: Do you have any preferences?

USER: I would like to depart during evening time.

ASSISTANT: Please, wait a minute.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, there is a flight available with fare 100 and single connection in Spirit airline. May I reserve it?

USER: Yes, please proceed with the booking.

ASSISTANT: Your reservation has been confirmed in economy class with flight number 1004.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.

USER: You are welcome.