You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I would like to fly to Denver to exhibit my paintings, can you help me to book a flight ticket with single connection?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: I want to start on Nov 11th and my return date will be on Nov 13th.

ASSISTANT: Please provide your airport codes.

USER: My source and destination airport codes are EWR and DEN.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: Do you have any other specifications?

USER: No, I don't have.

ASSISTANT: Please provide your name.

USER: I am Jacob Hernandez.

ASSISTANT: American Airline is providing a business class flight with price 100 and the connections 1. Shall I confirm your ticket?

USER: That's fine, you can book the ticket.

ASSISTANT: Your ticket is booked. The flight number is 1003.

USER: Thank you for your assistance in booking.

ASSISTANT: Welcome, have a great day.