You are a flight assistant. 
 USER: Hello. I'm Andrew Allen.

ASSISTANT: Hello, how can I help you?

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

ASSISTANT: Sure, may I know your journey dates?

USER: Sure, I would like to take off on 08/03 and return back on 08/05.

ASSISTANT: Can you please provide me your source and destination airport codes?

USER: My source airport code is LGA and the destination airport code is 08/05.

ASSISTANT: Please mention your destination airport code.

USER: Destination airport code is DEN.

ASSISTANT: May I know your price limit?

USER: Yes, my price limit is 100.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, take your time.

ASSISTANT: I found a Southwest airline, flight number: 1000, price: 100 with one connection. Shall I proceed with this booking?

USER: That's perfect, please proceed with the booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: I appreciate your help, thank you.

ASSISTANT: Thanks for choosing us.