You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am Amy Mitchell. I want to book a flight ticket within a price limit of 5000 to attend a Science festival in Las Vegas.

ASSISTANT: Sure, may I know your airport codes?

USER: My source and destination airport codes are GA - ATL, NV - LAS.

ASSISTANT: Sure, may I know your travelling dates?

USER: I would like to fly on 01/24, return on 01/26.

ASSISTANT: We found a flight on your details with airline Spirit, flight number: 1003. Shall I book this ticket?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been booked with the name of Amy Mitchell.

USER: Thank you for your help.

ASSISTANT: Thank you so much for choosing us.