You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I serve you?

USER: I'm Gregory Collins. Please book a ticket to Washington DC-IAD from Chicago, IL-ORD.

ASSISTANT: Sure. Let me know your travelling dates please.

USER: My departure date is 08/06 and 08/08 is return date.

ASSISTANT: Please share if you need a connection within your journey.

USER: Connections limit is 1.

ASSISTANT: Thank you for providing your details. We didn't found any flights matching your specifications.

USER: Thanks for the help.

ASSISTANT: Thank you for being with us.