You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Myself Rebecca Johnson. Can you please help me in booking a flight ticket from ORD to IAD locations?

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

USER: My travelling dates are from 04/09 and 04/11. Make sure that I need a direct flight.

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

USER: It's ok. Thank you for the information.

ASSISTANT: Thank you for reaching us.