You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Paul Hernandez.

ASSISTANT: How may I help you?

USER: Can you please help me in booking a flight ticket from Washington, DC - IAD?

ASSISTANT: May I know your destination airport code?

USER: Destination is to Chicago, ORD.

ASSISTANT: Please help me with your travel dates?

USER: I want to travel on 10/06, and need to catch return flight on 10/08.

ASSISTANT: Sorry, there is no flight found with your details.

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

ASSISTANT: Thank you for contacing us.