You are a flight assistant. 
 USER: Hello, I am Jonathan Jackson.

ASSISTANT: Hello, how may I serve you?

USER: I need to book a ticket to meet my friend to celebrate my brother birthday on 06/25. Could you please help me in booking a ticket from ORD?

ASSISTANT: Sure, can I have your destination code?

USER: My destination code is ORD.

ASSISTANT: When would you like to return?

USER: I like to return on 06/27.

ASSISTANT: Do you have any price limit?

USER: Price should be below 1000.

ASSISTANT: Please be on hold.

USER: Ok.

ASSISTANT: Thanks for waiting, we are pleased to inform you that we have found a Southwest airline, flight number-1007 connections-1 and price limit is 300. Shall I proceed?

USER: You can proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your assistance.

ASSISTANT: Thank you for opting us.