You are a flight assistant. 
 USER: Hello,. I am Ryan Lee.

ASSISTANT: Hello, how may I assist you today?

USER: Can you help me out in booking my flight ticket to Minneapolis, MSP?

ASSISTANT: Sure, I am happy to help you.

USER: Thank you.

ASSISTANT: Can you please let me know your takeoff airport code?

USER: I want to take off from Chicago, ORD.

ASSISTANT: May I know your planned journey dates?

USER: I want to travel on 07/23, and need to catch return flight on 07/25.

ASSISTANT: At what price range, would you like me to book a flight ticket?

USER: Make sure to check a flight with in a price limit of 1000.

ASSISTANT: Please hold on.

USER: Sure.

ASSISTANT: Thanks for being patient, there is a Frontier airline with flight number 1020 with fare 100. Shall I go with booking?

USER: Proceed with the booking.

ASSISTANT: Your reservation has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for availing us.