You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am looking for a flight from IAD to IAH, can you help me in booking?

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

USER: Sure, my planned travel dates are June 19 and June 21.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: Please look for a connecting flight.

ASSISTANT: May I know your good name please?

USER: Myself Jennifer Miller.

ASSISTANT: Sorry, there is no flight available on your requested dates.

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

ASSISTANT: Thank you for reaching us.