You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kathleen Moore.

ASSISTANT: How can I help you?

USER: I planned to visit DTW.Can you please help me to book a ticket from DEN?

ASSISTANT: Travel dates please?

USER: My preferable dates are 06/10 and 06/12.

ASSISTANT: There is no flight available, Moore.

USER: That's ok. Thank you for your information.

ASSISTANT: Thanks for reaching us.