You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Laura Johnson. Can you please aid me to reserve a flight ticket from DFW to JFK?

ASSISTANT: Ok, please share your travelling dates to find a flight.

USER: Thank you. I am willing to travel on the dates of Dec 20 and Dec 22. The.

ASSISTANT: May I know your airline preferences?

USER: I didn't have any airlines preference.

ASSISTANT: Do you have any particular timings?

USER: The returning time of the flight should be in the afternoon.

ASSISTANT: Is there any other specifications?

USER: The connection limit of the flight should be at least 1.

ASSISTANT: I found a flight-1005 in business class, shall I proceed?

USER: Yes, please proceed to reserve the flight ticket.

ASSISTANT: Ok, booking is done on UA airlines.

USER: Thank you for your help.

ASSISTANT: Welcome, have a safe trip.