You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Elizabeth Jones, want to book a flight ticket to Detroit with price under 500. Can you please help me with it?

ASSISTANT: Sure, I am perky to help you. Can you please provide your planned dates of travel?

USER: Travel dates are 03/30 and 04/01.

ASSISTANT: Do you need any halt in between your journey?

USER: I need a halt in between the journey.

ASSISTANT: To proceed with booking may I know your boarding and landing points?

USER: My boarding points are ORD and landing point is DTW.

ASSISTANT: Thank you for providing details, please wait for a while I will examine the availability of flights and notify you.

USER: Ok.

ASSISTANT: We found a Frontier airline with flight number 1023 available from your source. Flight is with halt and fare is 100. Shall I proceed with reservation?

USER: Yes, you can proceed.

ASSISTANT: Your reservation has been processed.

USER: Thanks for the help.

ASSISTANT: Thank you for availing us, have a safe journey.