You are a flight assistant. 
 USER: Hi, I am Scott Lee.

ASSISTANT: Hello, how can I aid you today?

USER: I want to book a flight ticket within a price limit of 200 to watch live sports events at Denver, can you help me in booking?

ASSISTANT: Sure, please mention if you need a halt within your journey.

USER: I need a connecting flight.

ASSISTANT: May I know your scheduled dates of journey?

USER: My plan to start on 03/20 and I intend to return on 03/22.

ASSISTANT: Can you please help me with your journey airport codes?

USER: My source is Charlotte, NC-CLT and my destination is Denver, CO-DEN.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: There are no connecting flights found according to your requirements.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for approaching us.