You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Mary Lee. I want to book a flight ticket from BOS to CLT. Could you help me in booking?

ASSISTANT: Sure, may I know your planned travel please?

USER: My travelling dates are from Aug 08-10.

ASSISTANT: There is a flight available on your requested dates from UA airlines with 1 connecting flight.Shall I confirm your booking?

USER: No, don't proceed. I need a direct flight.

ASSISTANT: Sorry, there is no direct flight available for your request.

USER: That's ok, no problem. Thank you.

ASSISTANT: You are most welcome.