You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How may I aid you?

USER: Please book a ticket from Charlotte, NC-CLT to Denver, CO-DEN.

ASSISTANT: Please provide your trip dates.

USER: Departure date is 10/07 and will return by 10/09.

ASSISTANT: Please hold on for a while.

USER: Ok.

ASSISTANT: Connecting flight is provided by Frontier airlines with flight number 1002 and ticket costs you 100 in economy class.

USER: Please book a flight.

ASSISTANT: May I know your name?

USER: I am Brenda Moore.

ASSISTANT: Brenda, your ticket is confirmed.

USER: Thanks.

ASSISTANT: Thank you for choosing us.