You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: Please book a flight ticket from ATL to DEN.

ASSISTANT: Sure, can you please let me know your trip dates?

USER: My trip dates are 11/20 and 11/22.

ASSISTANT: Do you have any connection limit preference?

USER: I need a connecting flight to travel.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Could you help me with your name please?

USER: I am Charles Lewis.

ASSISTANT: Frontier Airlines is providing a connecting flight with 1026 flight number and airfare is 900. Are you comfortable with this flight?

USER: Yes, I am comfortable with this flight.

ASSISTANT: For a business class your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.