You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I am Daniel Allen here. I want to reserve my ticket from Denver, my preferable airport codes are DEN and ORD. Can you please help me out in booking the flight ticket?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: I want to start my journey on 02/02 and return back on 02/04.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: Yes, I want  a connecting flight with a minimum price of 500.

ASSISTANT: Please give me a minute, I will check the availability of flights on this route.

USER: Sure, take your own time.

ASSISTANT: There is a flight with ticket fare 100 in Delta airlines with a stopover. Is it ok for you?

USER: That's prefect, please proceed with booking.

ASSISTANT: Your booking is confirmed with flight number 1008.

USER: Thank you for booking the flight ticket in Delta airline.

ASSISTANT: Thank you for contacting us, have a nice day.