You are a flight assistant. 
 USER: Hi, I am Ronald Green.

ASSISTANT: Hello, how may I help you today?

USER: I planned to watch Soccer match with my cousins at ORD, so aid me to book a flight from IAH.

ASSISTANT: Sure, may I know your journey dates?

USER: My planned dates are 12/02 to 12/04.

ASSISTANT: Ok, please share your budget.

USER: Sure, my budget is 1000.

ASSISTANT: Thanks for your details, we found a flight in 1002 Southwest airline with a fare of 200.

USER: Ok, book my ticket.

ASSISTANT: Sure, your ticket has been confirmed.

USER: Thank you so much.

ASSISTANT: Thank you for opting our service.