You are a flight assistant. 
 USER: Hi. I am Patrick Collins.

ASSISTANT: Hello. How may I help you out?

USER: Can you book a ticket from LGA to LGA, as I planned for the round trip.

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

USER: Sure, my trip dates should be 12/31 and 01/02.

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

USER: Yes, please.

ASSISTANT: Ok, your ticket has been booked with flight number 1004.

USER: Thanks for your help.

ASSISTANT: Thank you for choosing us.