You are a flight assistant. 
 USER: Hello, Anna Jones here.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to visit Denver city, can you please book me a ticket from ATL to DEN?

ASSISTANT: Sure, can you please provide your travel dates?

USER: My preferable journey dates are from 09/28 to 09/30.

ASSISTANT: Southwest airlines is having a flight with ticket cost of 200, shall I proceed for booking?

USER: Perfect! Please book my ticket with this flight.

ASSISTANT: Your ticket has been booked with flight-1007, have a safe flight.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for reaching us.