You are a flight assistant. 
 USER: Hi. Helen Garcia here.

ASSISTANT: Hello, how can I help you?

USER: Can you book a flight ticket for my airport codes that is from SEA to DCA?

ASSISTANT: Sure, please share your travel dates.

USER: The trip dates are from Mar 02 to Mar 04.

ASSISTANT: Do you prefer either economy or business class?

USER: That does not matter. I prefer a stopover flight.

ASSISTANT: Sure, please let me know if you have any specific depart and return time preference.

USER: That does not matter too.

ASSISTANT: May I know your name to proceed further?

USER: I am Helen Garcia.

ASSISTANT: We have a connecting flight from Spirit airlines, number 1006 and the price is 100. Shall I proceed?

USER: You can book the flight ticket.

ASSISTANT: Your economy class seat is confirmed.

USER: Thank you.

ASSISTANT: Thank you for opting us.