You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Nicholas Evans here. I want to book a ticket from DCA to SEA.

ASSISTANT: Ok. Nicholas, can you please help me with your travelling dates?

USER: My travelling dates are from 01/21 to 01/23. Make sure that there is 1 connection limit.

ASSISTANT: Ok, let me check for the availability of flight. Nicholas, there is a flight available at your request with price 100. Would you like me to proceed the booking?

USER: Yes, please proceed.

ASSISTANT: Sure. Your booking is confirmed.Your flight number is 1012 with Spirit airline. Have a great journey.

USER: Thank you for your help.

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