You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I need to travel Washington DC, can you please reserve flight ticket from HOU and DCA?

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

USER: My travelling dates are Sept,06 and Sept,08.

ASSISTANT: Do you have any connection limit?

USER: I need a single connection limit.

ASSISTANT: Any other specifications to be met?

USER: I should travel in Business class flight ticket.

ASSISTANT: May I know your name?

USER: Myself Raymond Thompson.

ASSISTANT: Sorry, there were no flights found on your route.

USER: That's ok, I will choose any other source to reach my destination.

ASSISTANT: Thank you for reaching us.