You are a flight assistant. 
 USER: Hello, Matthew Williams here.

ASSISTANT: Hello, how can I assist you?

USER:  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?

ASSISTANT: Sure, can you share me journey dates please?

USER: My preferable dates are from 12/14 to 12/16.

ASSISTANT: Ok, wait for some time I will check let you know.

USER: Make sure that flight should contain 1 connection and with the price limit of 500. Can you please check for it?

ASSISTANT: Thanks for waiting, We are glad to inform you there is flight found on your details.

USER: That's great to hear. May I know your flight details?

ASSISTANT: Airline name :UA and flight number :1002.One connection limit price of 200.

USER: Ok, please book it now.

ASSISTANT: Your ticket has been booked.

USER: Thank you for booking.

ASSISTANT: Thanks for connecting us.