You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: Myself Samuel Young. Can you please help me in booking a flight ticket from ORD to DCA locations?

ASSISTANT: Sure, may I know your departure and arrival day?

USER: My travelling dates are from 09/15 and 09/17. Make sure that I need a direct flight.

ASSISTANT: Sorry, there is no plane with 0 connection.

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

ASSISTANT: Thank you for choosing us, have a great day.