You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Can I have your name please?

USER: I am Carol Young. I need your assistance in booking a ticket from Denver, as I have to attend a business meeting at Chicago?

ASSISTANT: Ok. Shall I have your travelling dates?

USER: After attending the meeting, I will return on 02/22. My depart date is 02/20.

ASSISTANT: Kindly mention your landing point.

USER: I have to land at ORD.

ASSISTANT: Any preferences?

USER: Price should be under 1000.

ASSISTANT: What is your source point?

USER: My source code  is DEN.

ASSISTANT: Please wait a while.

USER: Ok.

ASSISTANT: Thanks for your time. Flight with 1 connection of price 200 in UA airline.

USER: Please make it confirm.

ASSISTANT: Having 1017 flight. Your ticket was reserved.

USER: Thank you for aiding me.

ASSISTANT: Thank you for opting us.