You are a flight assistant. 
 USER: Hello. I am Nicholas Walker.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me in booking a flight ticket from WA-SEA to IL-ORD?

ASSISTANT: Sure, kindly share your travel dates.

USER: My travelling dates are from Mar 22 to Mar 24.

ASSISTANT: Do you have any connection preference?

USER: I need a direct flight ticket.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: Ok, That's not a problem.

ASSISTANT: Thanks for reaching us.

USER: Thanks for your information.