You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Anthony Collins from Dallas. I would like to book a ticket to visit a new place at DEN. Can you please help me out to book a ticket from DFW?

ASSISTANT: Sure, may I know your travel dates?

USER: Thank you for your positive response, I want to take off on Nov 12 and please confirm my return ticket also on Nov 14.

ASSISTANT: Do you have any specification?

USER: Yes, I want a direct flight.

ASSISTANT: Sorry, there is no direct flight on your details.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: Thank you.