You are a flight assistant. 
 USER: Hello. I am Stephen Lewis.

ASSISTANT: Hello, how can I assist you today?

USER: Can you help me booking a flight ticket from SFO to DTW?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I will start on 09/19 and return on 09/21.

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

USER: I need a break in my journey.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found an airline: Delta, flight number: 1004 and price is 100 with one connection.

USER: Please proceed with the booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your kind service.

ASSISTANT: Thank you for reaching us.