You are a flight assistant. 
 USER: Hi, Paul Scott here.

ASSISTANT: Hello. How may I assist you?

USER: I have heard that Denver is the best place for site seeing, so I need to visit the places with my family. Can you help me for booking a flight ticket to CO - DEN?

ASSISTANT: Sure, we are here to help you. When are you planning to travel?

USER: I would like to travel on 06/17 and return on 06/19.

ASSISTANT: May I know your origin point?

USER: Sure, my origin is Orlando, FL - MCO.

ASSISTANT: Let me know your specifications?

USER: I need a connected flight. And my price limit is 200.

ASSISTANT: Unfortunately, there is no flights found based on your dates.

USER: Ok, no issue. Thanks for your prompt response.

ASSISTANT: Thanks for choosing us, have a nice day.