You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I'm Karen Campbell. I am planning to attend business meeting at Minneapolis, can you please help me with booking a flight ticket from LAX?

ASSISTANT: Can you share your destination airport code?

USER: Sure, the destination airport code is MSP.

ASSISTANT: Please share the dates of your journey.

USER: Ok, I would like to take off on 04/28 and return back on 04/30.

ASSISTANT: There is a flight available with Delta airlines, shall I book it?

USER: Ok, please proceed with the booking if the price limit does not exceed 1000.

ASSISTANT: Your booking is done, flight number is 1002, it's cost is 200.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.