You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am looking for a flight from CLT to DEN, can you please help me in booking?

ASSISTANT: Sure, I am here to help you. Can you please provide me your travelling dates to search a flight for you on your route?

USER: My travelling dates are Mar 16 and Mar 18.

ASSISTANT: Ok, please mention your name.

USER: My name is Kevin Carter.

ASSISTANT: Ok, do you have any specifications for your journey?

USER: I need a connecting flight.

ASSISTANT: Sorry, no flights are available on your route.

USER: That' s ok, thank you for checking.

ASSISTANT: Welcome, have a nice day.