You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you for the day?

USER: Kathleen Carter here. I am looking for a flight from IAD to MSP, can you please help me in booking a flight ticket?

ASSISTANT: Ok, may I know your planned dates for your journey?

USER: My trip dates are from 09/01 till 09/03.

ASSISTANT: Flight-1007 by UA airlines is available for you with 1 connection at the cost of 200. Shall I book it for you?

USER: I need a direct flight.

ASSISTANT: Ok, let me check for a direct flight.

USER: Ok, take your time.

ASSISTANT: Sorry to inform you  Kathleen Carter but no flights are currently available for you.

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

ASSISTANT: Thank you for reaching our agency. Have a nice day.