You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you at this moment?

USER: I want to fly from LAS - DEN. Can you check the flight availability for this root?

ASSISTANT: Sure, I am here to help you. Could you please provide your journey dates?

USER: My planned travel dates are 11/03 and 11/05.

ASSISTANT: Do you have any connection limit?

USER: I want a flight with maximum connection of 1.

ASSISTANT: May I know your airline preference for this trip?

USER: My airline preference is in normal - cost.

ASSISTANT: Do you have any other specifications for this trip?

USER: No more, thank you.

ASSISTANT: Can you please provide your name to proceed further?

USER: Sure, Patrick Young here.

ASSISTANT: Patrick Young, there are no flight services are available on this route on your provided dates.

USER: No issues, thank you for the information.

ASSISTANT: Thank you for contacting us.