You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Helen Robinson here.

ASSISTANT: How can I assist you today?

USER: I want to book a flight reservation on the route from HOU - DCA, can you please help me?

ASSISTANT: Sure, can you please share your travel dates?

USER: My travelling dates will be from 12/25 to 12/27.

ASSISTANT: Let me check for the availability of flight.

USER: Ok, please check for single connection flights.

ASSISTANT: Helen, there is a flight available with price 300 and the connection is 1 with Spirit airline. Would you like me to proceed with the booking?

USER: Ok, you can proceed with booking my reservation.

ASSISTANT: Your booking is confirmed with 1019 flight number.

USER: Thank you for helping me with booking.

ASSISTANT: You are welcome. Thank you for contacting us.