You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Need your assistance to make a reservation with the name of Jack Clark under the price limit of 500.

ASSISTANT: Sure, when do you want to travel?

USER: I want to travel on 06/06. And I have to be back on 06/08.

ASSISTANT: Let me know your airport codes?

USER: Source: New York, EWR and destination is LGA.

ASSISTANT: We found a flight on Spirit airline, flight number as 1001 with the fare of 200.

USER: Ok. Book my ticket with this flight.

ASSISTANT: Your ticket has been booked.

USER: Thank you for aiding me.

ASSISTANT: Thank you for choosing us.