You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I amend you?

USER: I am Laura Collins. I want to book a flight ticket on 12/19. Can you help me in booking a flight ticket with a connecting us?

ASSISTANT: Sure, may I know your return date?

USER: I will be return on 12/21.

ASSISTANT: Let me know your airport codes.

USER: My airport codes are from DFW to JFK.

ASSISTANT: Do you have any specifications?

USER: I need flight ticket under range of 1000.

ASSISTANT: Thanks for waiting, there is a flight with airline: spirit, flight number:1013, price 100, 1 connection. Shall I proceed? Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you.