You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I serve you?

USER: I am Scott Lewis. I would like to book a ticket from HOU to LAX, can you please help me out?

ASSISTANT: Sure. Kindly assign your preferred dates of travelling?

USER: I am travelling on these dates 12/13 and 12/15.

ASSISTANT: May I know at what price you are looking for ticket fare?

USER: I have price limit 500.

ASSISTANT: We found a Spirit airline, flight number:1000 and the price is 100. Can I reserve it?

USER: Ok, you can proceed with this flight.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your services.

ASSISTANT: Thank you.