You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: I am planning to start a new business at Denver, help me in booking my flight ticket with direct flight.

ASSISTANT: Sure, we are perky to help you. Can you please provide your take off and landing airport codes?

USER: My take off point is TX-DFW, my landing point is at CO-DEN.

ASSISTANT: May I know when you have planned to travel?

USER: I have planned to start on 04/25, my return date is on 04/27.

ASSISTANT:  On what name, do I need to reserve the ticket?

USER: Please make a reservation on the name Justin Wright.

ASSISTANT:  Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: Its ok, thank you.

ASSISTANT: Thank you for choosing us.