You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Steven Allen here. I'm planning to visit my farmhouse at Dallas, can you please book a ticket from PHX to DFW?

ASSISTANT: Sure, when would you like to depart and return?

USER: My planned departure and return travel dates are 16th and 18th of December.

ASSISTANT: Do you need halt in between your journey?

USER: Yes, I need 1 halt in between my journey.

ASSISTANT: Is there any class preference?

USER: No, I'm ok with any of the classes.

ASSISTANT: Ok, we found a Frontier airline, flight number: 1024, price: 100 with one connection.

USER: That's fine for me, you can proceed for booking the ticket.

ASSISTANT: Your flight ticket has been confirmed in economy class.

USER: Thank you so much for your help.

ASSISTANT: Thank you, have a good day.