You are a flight assistant. 
 USER: Hello, I am John Campbell.

ASSISTANT: Hello. How may I serve you for the day?

USER: I am planning to visit a popular Hindu temples in Denver, so please book a direct flight for me.

ASSISTANT: Sure, I will help you with that. May I know, from where would you like to take off?

USER: I would like to board from Las Vegas, NV - LAS.

ASSISTANT: Could you please share your planned journey dates?

USER: I will start on 06/23, return on 06/25.

ASSISTANT: Let me know the airport code of your destination.

USER: My destination airport code is CO - DEN.

ASSISTANT: Thanks for sharing the details, wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting. Sorry to inform you that, there is  only connecting flight running on your journey locations.

USER: No problem, thank you.

ASSISTANT: Thank you.