You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Rebbeca Taylor, I want to book a flight from Denver, CO-DEN to visit Art Institute of Chicago. Can you help me to book a flight with in fare of 500?

ASSISTANT: Sure, please share me your travelling dates?

USER: I will fly on 01/02 and return on 01/04.

ASSISTANT: Kindly assign me your destination code?

USER: My destination airport is IL-ORD.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: We found 1008 UA airline with single connection and price of 200. Shall I proceed with booking?

USER: Please proceed with booking.

ASSISTANT: Your booking is done.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us.