You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Could you do me a favour in making my reservation to Denver, CO-DEN?

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

USER: Sure, I am planning to travel on 08/27 from PA- PHL.

ASSISTANT: Ok, may I know your return date please?

USER: I would like to return on 08/29.

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

USER: Ok, take your time.

ASSISTANT: I found a flight for you with Frontier airline and it costs you 200. Shall I proceed?

USER: Yes, please continue and confirm my reservation. Please book the ticket with the name of Samuel Moore.

ASSISTANT: Your ticket has been booked with flight number 1026 Moore.

USER: Thank you so much.

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