You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Michelle Anderson here.

ASSISTANT: How can I assist you?

USER: I want a connecting flight from IAD to DEN, can you please help me in booking a flight ticket?

ASSISTANT: Sure, may I know your journey dates please?

USER: Sure, my journey dates are from 11/13 to 11/15.

ASSISTANT: Wait for a while please.

USER: Ok, take your time.

ASSISTANT: Spirit airlines is available in your route with the ticket fare of 100, shall I proceed with the booking?

USER: Ok, please proceed with booking.

ASSISTANT: Your ticket is booked with the flight-1005.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.