You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I need you to book a flight ticket.

ASSISTANT: Sure. Could you please mention your preferable travel dates?

USER: May 13 and 15 are my planned travel dates.

ASSISTANT: May I know your preferable airport code names?

USER: OAK and PHX are my in and out airport codes.

ASSISTANT: Are you ok with connecting flight or you need a direct flight?

USER: I need a connecting flight.

ASSISTANT: Do you have any preferences regarding timings of your journey?

USER: I am good to fly at any time.

ASSISTANT: Do you have any another specifications?

USER: I wish to fly in a normal-cost Airlines.

ASSISTANT: Ok, please hold on a moment.

USER: Sure, I will wait.

ASSISTANT: UA airline flight available with connection limit 1 and fare is 300, shall I confirm this economy class flight?

USER: Please book the ticket.

ASSISTANT: May I know your name for further process?

USER: I am Christine Martin.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1021.

USER: Thank you for the help.

ASSISTANT: You are welcome Christine Martin.