You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I have a plan to attend business meeting with my team members in Chicago, can you please help me in making a plane reservation from Las Vegas?

ASSISTANT: Sure, can I know the travel dates please?

USER: My travel dates are Mar 26th and Mar 28th.

ASSISTANT: May I know your name please to proceed further?

USER: Virginia Jones here.

ASSISTANT: Could you please provide the departure and return time?

USER: The return time should be afternoon.

ASSISTANT: Do you have any requirements?

USER: I need a direct flight.

ASSISTANT: Ok, wait a moment please.

USER: Sure, but I will prefer to travel with normal-cost.

ASSISTANT: Sorry, there are no flights available as per your request.

USER: Ok, no worries at all.

ASSISTANT: Thank you for approaching us.

USER: Thank you for your service.