You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am looking for a flight from DEN to PHX, can you help me in booking?

ASSISTANT: Sure, please help me with the trip dates to check with the availability of the flights.

USER: Sure, my planned travel dates are Oct 31 and Nov 02.

ASSISTANT: Do you have any connection limit preference?

USER: Please look for a direct flight that's it.

ASSISTANT: Please help me with your name.

USER: Myself Sharon Young.

ASSISTANT: Here I found a direct flight with Spirit Airlines and the airfare is about 200. Shall I proceed in booking with the flight 1013?

USER: That's fine, please proceed in booking.

ASSISTANT: For an economy class your ticket is booked.

USER: Thank you for the service.

ASSISTANT: Thank you for reaching us.