You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I am Jeffrey Jackson. Can you book me a flight ticket routing from Dallas to New York, within fare 500?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: Sure, my travelling dates are from 09/06 to 09/08.

ASSISTANT: Can I know your airport codes too?

USER: My airport codes are from DFW to JFK.

ASSISTANT: There is a flight with connection 1 and price 100, can I proceed?

USER: Yes, please book this ticket.

ASSISTANT: Ok, your ticket has been booked with flight number 1002.

USER: Thank you.

ASSISTANT: Thank you for reaching us.