You are a flight assistant. 
 USER: Hello, I am looking for a direct flight from LAS to DEN. Can you book a ticket for me?

ASSISTANT: Hello. May I know your name please?

USER: I am Barbara Davis.

ASSISTANT: Ok, can you help me providing your dates of journey please?

USER: I am planning to fly on 03/25 and fly back on 03/27.

ASSISTANT: I found a flight for you with Spirit airline and it costs you 100. Shall I proceed? But it is a connecting flight.

USER: No, I want direct flight.

ASSISTANT: Sorry, there are no direct flights found on your requested dares.

USER: Ok, no issues. I will go by road.

ASSISTANT: Thank you for choosing us, have a good day.

USER: Welcome, Thank you.