You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Carolyn Jackson. I want to book a flight ticket within my price limit of 500. Could you help me in booking a flight ticket?

ASSISTANT: Sure please share your travelling dates?

USER: I would like to fly on 03/15 and return date on 03/17.

ASSISTANT: May I know your airport codes?

USER: I am planning to visit Molly Brown House in Denver, CO - DEN and source from CA - SFO.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a connecting flight with fare of 100 in 1010 flight number. Shall I proceed for booking with Spirit airline?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your service.

ASSISTANT: Thanks for approaching us.