You are a flight assistant. 
 USER: Hello, I am Nancy Campbell.

ASSISTANT: Hello, how may I assist you today?

USER: I need to book a flight ticket from DFW to ATL, can you please help me to book a flight ticket?

ASSISTANT: Sure, can you please provide your journey dates?

USER: Sure, my journey dates are Jan 21 and Jan 23.

ASSISTANT: Do you have any specifications to be met?

USER: I need a halt. Please make sure it should be economy class airline.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: We have found a connected flight of Spirit airlines, flight number-1028 class-economy and fare is 200. Shall I proceed with the booking?

USER: Go ahead.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you for availing us.