You are a flight assistant. 
 USER: Hello, myself Ronald White.

ASSISTANT: Hello, how can I assist you?

USER: I would like to visit Denver Museum, please book a ticket from DTW to DEN.

ASSISTANT: Ok, I will be happy to assist you. May I know your dates please?

USER: My planned dates are 10/19 and 10/21.

ASSISTANT: Sorry, there are no flight available at your travel dates?

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

ASSISTANT: Thank you for connecting with our agency.