You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I want to book a ticket from DFW to PHX to attend seminar, can you help me in booking?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: I am departing on June 20 and return on June 22.

ASSISTANT: Can I have your name please?

USER: My name is Carolyn Harris.

ASSISTANT: Do you have any other requirements to be met?

USER: I prefer a connecting flight.

ASSISTANT: There is a connecting flight 1010 of Frontier airlines, can I proceed?

USER: Please proceed for booking.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Welcome.