You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Can you please book a flight ticket from DEN to CLT?

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

USER: Thank you. I am willing to travel on the dates of Sept 28th and 30th.

ASSISTANT: Do you have any preferences about flight connections?

USER: I need a single connecting flight.

ASSISTANT: Do you have any preferences about class?

USER: No, thanks for asking.

ASSISTANT: Please mention your name.

USER: I am Nancy Thompson.

ASSISTANT: The Frontier airlines providing an economy class flight with price 100 and the connections 1. Shall I confirm your ticket?

USER: I am ok with this flight, please proceed with the ticket booking.

ASSISTANT: Your ticket is booked. The flight number is 1015.

USER: Thank you so much for your help.

ASSISTANT: Welcome, have a great day.