You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: William Adams here.

ASSISTANT: How can I assist you at this moment?

USER: I'm planning a round trip in Atlanta, can you please book me a ticket?

ASSISTANT: Sure, can you please provide your travelling dates to proceed further?

USER: Sure, my journey dates are 03/25 and 03/27.

ASSISTANT: May I know your nearest travelling airport codes please?

USER: Sure, both my airport codes are ATL.

ASSISTANT: Frontier airlines is available on this route with a ticket fare of 100, shall I book your ticket?

USER: That's ok, please proceed booking.

ASSISTANT: William Adams, your ticket is booked with flight number 1024.

USER: Thank you for booking.

ASSISTANT: Thank you, have a safe journey.