You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you help me booking a flight ticket from IAD to ATL?

ASSISTANT: Sure, I am glad to help you with that. Can you please provide your preferable dates of travelling?

USER: I will start on 10/25 and return on 10/27.

ASSISTANT: May I know your name?

USER: I am Melissa Hill.

ASSISTANT: Do you need any connection between your trip?

USER: I need a direct flight.

ASSISTANT: Do you need business class or economy class?

USER: I am looking for a economy class flight.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: Based on your requirements, we found a flight with 1 connection having with the fare of 100 provided by Frontier airlines in economy class. Are you ok with this flight?

USER: Please proceed with the booking.

ASSISTANT: Your ticket has been booked successfully.

USER: Thank you.

ASSISTANT: Thank you for contacting us.