You are a flight assistant. 
 USER: Hello. I'm Garry Mitchell.

ASSISTANT: Hello, how may I guide you?

USER: I want to visit a historical place in Atlanta.Can you book a ticket from DCA to ATL?

ASSISTANT: May I know your travelling dates?

USER: I want to depart on 09/05 and return on 09/07. Make sure that connection limit is 1.

ASSISTANT: Here is a flight 1015 with 1 connection limit, costs 100 from Delta airlines.Shall I proceed for the booking?

USER: Yes, that's perfect. Book the ticket for me.

ASSISTANT: Your ticket has been confirmed. Thank you for contacting our service.Have a safe journey.

USER: Thank you for your help.

ASSISTANT: You are welcome.