You are a flight assistant. 
 USER: Hello, I am Robert Martin.

ASSISTANT: Hello, how may I help you?

USER: I am planning to visit Golden gate bridge in San Francisco CA - SFO, can you please help me to book a flight ticket from DCA?

ASSISTANT: Sure, could you please help me with your travelling dates?

USER: Sure, the trip dates are 12/20 to 12/22.

ASSISTANT: May I know your price limit?

USER: My price is 500.

ASSISTANT: May I know your connection limit?

USER: Yes, I need a halt.

ASSISTANT: We found a flight with 2 connections. Can I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been booked on spirit airline, flight number as 1008 with the fare of 100.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.