You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Helen Allen.

ASSISTANT: How can I aid you?

USER: I want to visit Mill City Museum at Minneapolis. Can you please help me to book a flight ticket?

ASSISTANT: Sure, may I know your nearest origin airport code and destination airport code please?

USER: My source airport code is ATL and my destination code is MSP.

ASSISTANT: May I know your journey dates please?

USER: I am planning my trip on 07/30 and again I will be return back on 08/01.

ASSISTANT: Wait for a while please.

USER: Sure.

ASSISTANT: Flight-1020 from UA airlines is available with the ticket fare of 200, shall I proceed for booking?

USER: yes, you can proceed for that.

ASSISTANT: Your ticket has been booked successfully, have a safe journey.

USER: Thank you very much for booking the ticket.

ASSISTANT: Thank you for approaching us.