You are a flight assistant. 
 USER: Hello,. I am Angela Collins.

ASSISTANT: Hello, how can I help you?

USER: I would like to fly from Denver and I want to enjoy by watching Cedar lake which is in Minneapolis &St Paul. Can you please book a flight ticket?

ASSISTANT: Ok, I will help you. May I know your journey details?

USER: My travelling starts from CO-DEN and return on MN-MSP.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight. Price should be under 5000.

ASSISTANT: Ok, may I know your travelling dates?

USER: I would like to travel on 09/17 and arrival on 09/19.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, but there are no flights as you required.

USER: Ok, Thanks for your information.

ASSISTANT: Thank you so much for communicating with us, have a good day.