You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a ticket can you assist me? My name is Samuel Nelson.

ASSISTANT: Sure, may I know your origin and destination airport codes?

USER: My airport codes are LAS to ORD.

ASSISTANT: Could you please provide your journey dates?

USER: My journey dates are 03/27 & 03/29.

ASSISTANT: Is there any restrictions in price and connections?

USER: Please make sure that I need flight with connection 1 and price limit is 500.

ASSISTANT: Flight number 1002 from JetBlue airline is exactly matches with your requirements. Shall I proceed with it?

USER: OK, book it.

ASSISTANT: OK, your ticket has been booked.

USER: Thank you for booking.

ASSISTANT: Thank you, have a safe journey.