You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Joshua Lewis, I want to book a flight ticket from SFO - DCA. Aid me to book a flight ticket.

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

USER: My travelling dates are 01/30 and 02/01.

ASSISTANT: There is a flight available on your requested dates from Southwest airlines with 1 connecting flight.

USER: Yes, please proceed with my booking.

ASSISTANT: Your ticket is booked with flight 1000.

USER: Thank you for booking my flight ticket.

ASSISTANT: You are most welcome.