You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Barbara Hill.

ASSISTANT: How can I help you?

USER: I am planning to visit IAD to meet my brother, can you please find a flight from DEN?

ASSISTANT: Sure, I will help you to book a flight. Can please share me your travelling dates?

USER: My planning dates are from 09/07 till 09/09.

ASSISTANT: Please give me a moment.

USER: I need a direct flight.

ASSISTANT: Sorry Hill, no flight is found on your route with 0 connection.

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

ASSISTANT: Welcome, have a nice day.