You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Nicole Miller.

ASSISTANT: How may I guide you today?

USER: I am looking for a direct flight from Las Vegas, please help me in booking a ticket from LAS to DEN.

ASSISTANT: Sure, I will help you with that. Can you please provide your preferable departure and return dates of travelling?

USER: My planned journey dates are 11/12 and 11/14.

ASSISTANT: Please wait a moment to check the flights on your route.

USER: Sure, take your time.

ASSISTANT: We regret to inform you that there are no direct flights available for your request with your planned dates of travelling.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for reaching to our services, hope you have a great day.