You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you?

USER: I am planning to go to my sister's marriage in Las Vegas. So please help me to search a flight ticket.

ASSISTANT: May I know your name please?

USER: My name is Christopher Moore.

ASSISTANT: May I know your airport codes and dates of your trip?

USER: The origin airport is JFK and the destination airport is LAS. The trip dates are 05/08 and 05/10.

ASSISTANT: Ok, please wait.

USER: Can you please check for the flight with price 200?

ASSISTANT: There is a flight for you with 1001 in AA airline. The price is of 100.

USER: Ok, then book my ticket to this flight.

ASSISTANT: Ok, your ticket has been booked.

USER: Ok, thank you very much.

ASSISTANT: Thank you.Have a nice day.