You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Could you please book a ticket from SEA to ATL.

ASSISTANT: Sure, let me know your travel dates?

USER: Departure is by Sept, 12 and return date is Sept, 14.

ASSISTANT: May I know your connection limit?

USER: I would prefer connecting flight.

ASSISTANT: Is there any other specifications?

USER: I would like to depart in the evening.

ASSISTANT: Can I know your good name?

USER: My name is Donna Martinez.

ASSISTANT: Thanks for your details, there is no flight found on your desired journey routes.

USER: Thank you.

ASSISTANT: Thank you for availing us.