You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I would like to book a flight ticket from IL - ORD to WA - SEA for an event.

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

USER: My travelling dates are 06/05 and 06/07.

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

USER: Ok, thank you for the information.

ASSISTANT: May I know your name please?

USER: Myself George Hall.

ASSISTANT: Ok, thank you.