You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am looking for a flight from IAD to DCA, can you please help me in booking?

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

USER: I will start my journey on Mar 23 and return back on Mar 25.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I want to return in afternoon.

ASSISTANT: May I know your good name?

USER: My name is Mark Hernandez.

ASSISTANT: We found a direct airline: JetBlue, flight number: 1001 and price is 100.

USER: Please proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.