You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Paul Harris, planning to visit my brother. Can you help me to book a flight?

ASSISTANT: May I know your journey details?

USER: My locations are ORD and ORD. My travelling dates are 02/23 and 02/25. Please find a flight with 1 connection limit.

ASSISTANT: I have found a flight Frontier and the flight number is 1020. Can I proceed?

USER: Proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you. have a safe journey.