You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I best serve you today?

USER: I would like to book a ticket from ATL to CLT.

ASSISTANT: Sure, can you please mention your depart and arrival dates of your journey?

USER: Travelling dates are Aug, 31 and Sept, 2.

ASSISTANT: Do you like to go with a connecting or direct flight?

USER: I would be comfortable with single stop over.

ASSISTANT: May I know if you prefer to have any other comforts in your journey?

USER: I prefer normal-cost airlines.

ASSISTANT: Can I know your good name to proceed further?

USER: David Thomas.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: Thank you.

ASSISTANT: Thank you for choosing us.