You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Michelle Parker.

ASSISTANT: Michelle Parker, how may I assist you with today?

USER: I am looking for a flight from IAD to DEN, can you help me in booking?

ASSISTANT: Sure, I will help you. May I know your preferred travel dates please?

USER: Sure, my planned travel dates are Oct 09 and Oct 11.

ASSISTANT: Thank you. In order to help you better, may I know how much you can afford for the ticket please?

USER: I can afford up to 5000.

ASSISTANT: Thank you for the information. Please let me know with your preferences on your journey.

USER: Make sure that I need a connecting flight.

ASSISTANT: Great! We have a flight-1026 operated by Southwest airlines which matches to your requirements. Is it okay for you? The fare is 1200 for ticket.

USER: That's fine, please proceed in booking with this flight.

ASSISTANT: I have booked the ticket for you.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us. Have a great journey.

USER: Welcome.