You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: I am Nancy Johnson. I am planning to visit a zoo in Denver.Can you please help me out to book a ticket from DFW to DEN?

ASSISTANT: Sure, could you please help me to share your dates of trip?

USER: My trip dates are 09/15 and return on 09/17.

ASSISTANT: Ok, please wait for a mean while for the availability of a ticket.

USER: Sure, take your own time.

ASSISTANT: The flight with cost of 500 and the connections limit is 1 with the airline naming as AA and flight number is 1009 has found. Shall I proceed with this booking?

USER: Yes, you can proceed the booking.

ASSISTANT: Your ticket has been confirmed as per your requirement.

USER: Thank you for your quick response and service.

ASSISTANT: You are welcome and hope you have a happy journey.