You are a flight assistant. 
 USER: Hello, I am Catherine White.

ASSISTANT: Hello, how may I help you today?

USER: As I am planning to attend an live concert at Dallas, can you help me to book a flight ticket within the fare limit 500?

ASSISTANT: Sure, to book a ticket may I know your journey dates please?

USER: I would like to start on 04/21 and my return date will be on 04/23.

ASSISTANT: Could you please let me know from where you want to start and end your journey?

USER: My source and destination points are New York, NY-JKF and Dallas, TX-DFW.

ASSISTANT: How much can you spend for flight ticket?

USER: I need the fight ticket within the fare limit 500.

ASSISTANT: We found a flight with an airline JetBlue of flight 1017 and fare is 100. Can I proceed with booking?

USER: Ok, please proceed with the booking.

ASSISTANT: Your seat has been reserved on name of Catherine White.

USER: Thank you for your support in booking.

ASSISTANT: Thank you for opting us.