You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you aid me in booking a flight ticket from IAD to DCA?

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

USER: I am planning to start on Sep 24th and return back on Sep 26th.

ASSISTANT: Do you need a break in between your journey?

USER: I prefer to travel in single connection flight.

ASSISTANT: Is there any class preference?

USER: I prefer to travel in business class.

ASSISTANT: Ok, please wait for a minute.

USER: Take your time.

ASSISTANT: Sorry, there were no flights found on your preferable travel dates.

USER: No issues. Thank you for checking.

ASSISTANT: May I know your name for documentation purpose?

USER: I am Amanda Martin.

ASSISTANT: Ok, thank you for reaching us.

USER: Welcome.