You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you?

USER: This is Karen Smith, can you please help me to book a flight ticket from ATL to DEN?

ASSISTANT: Sure, on what dates are you planning to travel?

USER: My travelling dates are 05/09 and 05/11.

ASSISTANT: Please be on hold for sometime, as I can check a flight for your journey with the best airlines.

USER: Sure.

ASSISTANT: Frontier airline with flight number 1015 is going on your way and the fare is 200. Is that fine?

USER: Yes, please reserve the seat.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for choosing us.