You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: Jerry Wilson here. Can you please help me in booking the ticket from ORD to SEA?

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

USER: Sure, my journey dates are 04/09 and 04/11.

ASSISTANT: Sorry Wilson, there is no flight found as per your travelling details.

USER: That's ok, thank you.

ASSISTANT: You are welcome.