You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Please help me in booking a flight ticket from DTW to DEN.

ASSISTANT: Sure, I am here to help you. Can I know your travel dates?

USER: My travel dates are from Nov 11th to Nov 13th.

ASSISTANT: Noted. Please let me know your name.

USER: I am Ruth Young.

ASSISTANT: Thank you. Do you have any class preference?

USER: No.

ASSISTANT: Ok, is there any other requirements?

USER: Yes, I want to return in the morning. I want a break in between my journey.

ASSISTANT: Noted. Please wait, let me check for the available flights.

USER: Ok.

ASSISTANT: Sorry, there is no flight available as per your requirements.

USER: Ok, no problem. Thank you.

ASSISTANT: You are welcome and thank you for choosing us.