You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: Please help me to book a flight ticket from DEN to ORD.

ASSISTANT: Sure, I will help you. Please help me with your planned travelling dates.

USER: My trip dates are from Feb, 02 to Feb, 04.

ASSISTANT: Please let me know with your name.

USER: William Phillips.

ASSISTANT: Do you need a break in your journey?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Please allow me a minute.

USER: Sure.

ASSISTANT: Thank you. We have a connecting flight operated by American Airlines with a fare of 100 only. Shall I book the ticket in this flight?

USER: Please proceed.

ASSISTANT: I have booked your ticket in the flight-1003. It departs at 16:00 hours and arrives at 4:00 hours.

USER: Thank you for booking.

ASSISTANT: You are welcome. Thank you for reaching us. Have a great time.