You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight ticket from PHX to EWR. Can you find a flight ticket for me?

ASSISTANT: May I know your name?

USER: Ok, I am William Green.

ASSISTANT: Please mention your journey dates.

USER: Ok, my planned trip dates are on Nov 21 and return on Nov 23.

ASSISTANT: Can I have your connection limit?

USER: Ok, I need a single connecting flight.

ASSISTANT: Any other specifications?

USER: No, thanks for asking.

ASSISTANT: There is a connecting flight-1004 in economy class, shall I book it?

USER: Please proceed with the ticket booking.

ASSISTANT: Booking is done on Frontier airlines.

USER: Thank you for your great help.

ASSISTANT: Welcome William Green.