You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you book a flight ticket for me to go to Washington, DCA?

ASSISTANT: Sure, may I know your trip dates along with your source?

USER: Yes, I want to start my journey on the dates of 06/09 and 06/11. I need a flight from Denver, DEN.

ASSISTANT: Fine, let me know your name so that I can help you easily.

USER: My name is George Moore.

ASSISTANT: There is a direct flight for you with price 100, is it fine for you?

USER: Can you please search for the flight having a connection limit 1?

ASSISTANT: Sure, let me check.

USER: Ok.

ASSISTANT: Sorry, there is no flight for you with connections.

USER: It's ok, thank you for searching.

ASSISTANT: Ok, thanks for consulting us.

USER: Welcome.