You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to travel from DEN to PHL. Can you help me to book a flight ticket?

ASSISTANT: Sure, help me with your travel dates.

USER: I want to fly in the flight on June 30 and July 02.

ASSISTANT: Ok, do you have any class preference?

USER: No, but I am looking for a connecting flight.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: May I know your name?

USER: I am Paul Collins.

ASSISTANT: Ok, please wait for a while.

USER: Ok, take your time.

ASSISTANT: Delta Airlines is providing direct flight on this route with a ticket fare of 200 and flight departs at 17:00 hours and arrives at 6:00 hours, shall I book your ticket in this flight?

USER: Proceed to booking.

ASSISTANT: Your booking is confirmed and the flight number is 1027.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.