You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Susan Thompson.

ASSISTANT: How can I assist you?

USER: I am planning this vacation to visit Atlanta Botanic Garden at Atlanta. Can you please help me for booking a flight ticket?

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

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

ASSISTANT: May I know your dates of journey please?

USER: I am planning my trip on 12/10 and again I will be return back on 12/12.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Frontier airlines is available in your route with a ticket fare of 100. Shall I proceed with that?

USER: Yes, can you proceed for booking.

ASSISTANT: your seat has been booked with a flight number 1021.

USER: Thank you very much for booking my ticket.

ASSISTANT: Thank you for approaching us.