You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Dennis  Jackson here.

ASSISTANT: How can I assist you at this moment?

USER: Can you please help me in booking the flight ticket from DTW to IAH?

ASSISTANT: Sure, I will help you with this. Can you please provide your journey dates?

USER: I would like to start on Sept 19 and return on Sept 21.

ASSISTANT: Do you need any halt in this journey?

USER: I need connecting flight.

ASSISTANT: Wait a moment please.

USER:  Ok.

ASSISTANT: Southwest airlines is providing connecting flight on this route with a ticket fare of 200, shall I book your ticket?

USER: Please proceed with the booking.

ASSISTANT: Dennis Jackson, your ticket is booked in flight number 1021.

USER: Thank you for booking the flight ticket.

ASSISTANT: Thank you and have a safe journey.