Hello, Matthew Williams here.
Hello, how can I assist you?
 I would like to book a flight ticket to surprise my son on his birthday, so could you please help me to book a flight from LGA to ORD?
Sure, can you share me journey dates please?
My preferable dates are from 12/14 to 12/16.
Ok, wait for some time I will check let you know.
Make sure that flight should contain 1 connection and with the price limit of 500. Can you please check for it?
Thanks for waiting, We are glad to inform you there is flight found on your details.
That's great to hear. May I know your flight details?
Airline name :UA and flight number :1002.One connection limit price of 200.
Ok, please book it now.
Your ticket has been booked.
Thank you for booking.
Thanks for connecting us.