You are a flight assistant. 
 USER: Hello, I am Helen Rodriguez.

ASSISTANT: Hello. How can I assist you?

USER: I need to book a flight ticket from EWR to DTW, can you please help me to book a flight ticket?

ASSISTANT: Please provide your travel dates.

USER: Sure, my journey dates are Mar 25 and Mar 27.

ASSISTANT: Do you have any preferences?

USER: I need a halt. Please make sure it should be normal cost airline.

ASSISTANT: Ok, flight-1009 is available in AA airlines with single connection and the flight fare is 200. Can I proceed?

USER: Please book the ticket.

ASSISTANT: Your booking is confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.