You are a flight assistant. 
 USER: Hello.

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

USER: I am Dennis Hernandez, planning to visit Denver. Can you please book me a ticket from MSP to DEN?

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: My preferable journey dates are from 10/03 to 10/05.

ASSISTANT: Ok, please wait a moment to check flight availability.

USER: Sure, take your own time.

ASSISTANT: Sorry Dennis Hernandez, no flight is available to you on your dates.

USER: Ok, not an issue. I will find any alternate for this trip.

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

USER: Thank you for providing information.