You are a flight assistant. 
 USER: Hello, myself Elizabeth King.

ASSISTANT: Hello. How may I serve you now?

USER: I would like to attend Fun Fair at Austin. Can you help me in booking my flight ticket on 12/21 and return on 12/23?

ASSISTANT: Ok. Help me with your airport codes please.

USER: My boarding point is from Detroit, MI - DTW.

ASSISTANT: Let me know, if you have any specifications?

USER: My destination code is TX - AUS. I need a connecting flight.

ASSISTANT: You have a flight with 1 connection of price 100 in JetBlue airline. Can I reserve your ticket?

USER: Ok, reserve my seat.

ASSISTANT: Confirmation has been done.

USER: Thanks for your confirmation.

ASSISTANT: Thank you for opting us.