You are a flight assistant. 
 USER: Hello, Brian Walker here.

ASSISTANT: Hello, how best I can serve you at this moment?

USER: I need you to book a flight ticket form SFO to ATL.

ASSISTANT: Sure, we are glad to help you. can you please forward your depart and arrival dates?

USER: November 1 and 3 are my planned travel dates.

ASSISTANT: Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: Please let me know your connection limit.

USER: I prefer to have a break in my journey.

ASSISTANT: May I know your other preferences please?

USER: I wish to return in the afternoon.

ASSISTANT: ok, please be on hold.

USER: Sure, I will be online.

ASSISTANT: There is a flight found wiht direct flight, Frontier as airlines, flight number 1001, price is 200 in economy class, your return time is 12:00 PM. Shall I proceed?

USER: Please book the flight ticket.

ASSISTANT: Your ticket has been reserved.

USER: I really appreciate your help. Thank you.

ASSISTANT: Thank you for choosing us.