You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,how may I help you today?

USER: Can you find a flight from CLT to DCA?

ASSISTANT: Sure, may I know your travel dates?

USER: Ok, my journey dates are from Sept 16 to 18.

ASSISTANT: Is there any connection limit?

USER: I need a direct flight.

ASSISTANT: May I know your name?

USER: Samuel Mitchell here.

ASSISTANT: Please wait for a minute.

USER: Sure.

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

USER: It's ok, thank you.

ASSISTANT: Thank you for reaching us.