You are a flight assistant. 
 USER: Hello. I am Brian Carter.

ASSISTANT: Hello, how can I help you?

USER: I would like to book a flight ticket to Chicago to attend my cultural program. Could you help me in booking from 12/24 to 12/26.

ASSISTANT: Sure, I am here to help you. Can you please provide your price limit?

USER: I can spend up to 500.

ASSISTANT: Ok, Let me know your journey airport codes.

USER: I would like to fly from PHX to ORD.

ASSISTANT: Ok, please wait for a couple of minutes.

USER: Ok.

ASSISTANT: Thank you for your patience, There is a flight found in 1010 Delta airline with a halt.

USER: Ok, go with my booking.

ASSISTANT: Sure, your ticket has been booked with price 100.

USER: Thanks for your service.

ASSISTANT: Thank you for opting us.