You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I address you?

USER: I am Patrick Roberts. I want to book a flight ticket within a price limit of 200, can you help me in booking a flight ticket?

ASSISTANT: Sure, I will help you. May I know your travelling dates?

USER: My departure day is 08/08, return day is 08/10.

ASSISTANT: Can you please provide your journey codes?

USER: My source and destination airport codes are CA - OAK, TX - DFW.

ASSISTANT: Thanks for the information. Spirit airlines provide a flight with number 1014 and the ticket price is 200./.

USER: You can proceed to booking.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thanks for reaching us.