You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I need to visit Charlotte, NC - CLT. Can you please book me a flight ticket with fare of 200?

ASSISTANT: Sure, Can I have your travel dates?

USER: Sure, my travelling dates are 12/23 and 12/25.

ASSISTANT: May I know your origin?

USER: My origin is Denver, CO - DEN.

ASSISTANT: We found a flight with the price 100, flight number is 1003 in single connection. Shall I make the reservation with Frontier airline?

USER: Ok, you can proceed for booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for booking.

ASSISTANT: May I know your name?

USER: Susan Rodriguez is my name.

ASSISTANT: Thanks for choosing us, have a good day.