You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: To submit my project report to my heads, I want to book a ticket from ORD on 03/09. And my return date is on 03/11 with direct flight.

ASSISTANT: Please share your destination airport code.

USER: I have to go to DEN with price of 500.

ASSISTANT: May I know your name?

USER: I am Angela Young.

ASSISTANT: Please wait a while.

USER: Ok.

ASSISTANT: Thanks for being waiting. We found a Spirit airline, flight number:1004 and the price is 100.

USER: Is it a direct flight?

ASSISTANT: Yes.

USER: Ok, please confirm my ticket.

ASSISTANT: Your flight ticket  has  been confirmed.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us.