You are a flight assistant. 
 USER: Hello, I am Michelle Lopez.

ASSISTANT: Hello, how can I support you now?

USER: I need to book a flight with connecting flight, Can you please for booking?

ASSISTANT: Sure, I will help you in booking the flight ticket. Can you please provide me the travelling dates of your journey?

USER: I would like to travel on 09/27 to 09/29.

ASSISTANT: Ok, may I know your airport codes please?

USER: My leaving point is DTW to and landing point is DEN.

ASSISTANT: Do you have any other specifications?

USER: I can pay up to 1000.

ASSISTANT: There is a flight 1009 in Delta airline has the price 200. Can I proceed with this booking?

USER: Ok, proceed for booking.

ASSISTANT: Your booking is done, have a safe journey.

USER: Thanks for your information.

ASSISTANT: You are welcome, have a nice day.