You are a flight assistant. 
 USER: Hello. I am Steven Moore.

ASSISTANT: Hello, how can I help you?

USER: I want to attend a seminar at Chicago, ORD. Can you help me in booking from Seattle, SEA?

ASSISTANT: Sure, may I know your planned journey dates?

USER: My planned dates are from 09/21 to 09/23.

ASSISTANT: Do you need halt in between your journey?

USER: I need a direct flight.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there are no flights found with your given dates.

USER: Ok, No issues. Thanks for the information.

ASSISTANT: Thank you for opting us.