You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I have a meeting with my client in LGA. Can you please make a reservation from DEN?

ASSISTANT: Sure, we are glad to help you. Can you please share your travel dates that you have planned?

USER: Sure, I want to travel on May 8 and need to return on May 10.

ASSISTANT: Do you need any specifications in connection?

USER: I need a direct flight.

ASSISTANT: May I know your good name please?

USER: Myself Lisa Collins.

ASSISTANT: Is there any other specifications regarding your journey?

USER: Yes, my return time must be in the afternoon.

ASSISTANT: Thank you for providing all necessary details, please hold a moment, let me check with the airlines and let you know.

USER: Sure.

ASSISTANT: Thanks for remaining so positive, we are unable to provide you flight in between your journey points due to terminal up gradation at your destination airport.

USER: Ok, not an issue. Thank you for the information.

ASSISTANT: Thanks for contacting with us.