You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I would like to book a flight ticket from DEN to MCO to meet my brother. Can you please help me to book a flight?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: Thank you. My travelling dates are 09/25 and 09/27.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Sure, I will wait for your response.

ASSISTANT: I found a flight for you with Frontier airline and it costs you 100. Shall I proceed?

USER: Ok, please reserved my ticket on the name Jonathan Nelson.

ASSISTANT: Your ticket has been booked with 1020 flight number Nelson.

USER: Thank you for booking.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.