You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I'm planning to meet my old friend, can you please book the ticket from JFK to DFW?

ASSISTANT: Sure, when do you want to travel?

USER: I would like to depart from my source location on 4th Feb and I want to return back by 6th Feb.

ASSISTANT: Do you need a connecting flight?

USER: I prefer single connected flight.

ASSISTANT: Do you have any other specifications?

USER: No, I don't have any other specifications.

ASSISTANT: Can I know your good name?

USER: My name is Mary Campbell.

ASSISTANT: Thank you for your details, we found a connecting flight 1023 in class economy which is in United airline. Shall I proceed?

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

ASSISTANT: Your ticket has been confirmed.

USER: Thank you so much for your help.

ASSISTANT: Thank you.