You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you at this moment?

USER: I am Michelle Lewis, planning to visit SFO from my current location IAD. Can you help me to book a connecting flight?

ASSISTANT: Sure, I will help you and can you please mention your departure and arrival dates of your journey?

USER: My travelling dates are Sept 08 and 10.

ASSISTANT: How much you can afford for your flight ticket?

USER: My price limit is 500.

ASSISTANT: Is there any class that you prefer?

USER: No.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT:  I found a flight with a fare of 200 and there is a 1 halt in your journey and the flight number is 1002 in AA airlines, shall I proceed with ticket booking?

USER: Proceed with booking.

ASSISTANT: Your ticket has confirmed on your travel dates.

USER: Thank you.

ASSISTANT: You are most welcome.