You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am planning to attend my sisters wedding, could you book a ticket for me?

ASSISTANT: Sure, may I know the airport codes?

USER: I am travelling from DCA to ATL.

ASSISTANT: May I know the dates?

USER: My travel dates are 04/28 and 04/30.

ASSISTANT: There is a flight 1028 of Delta airline. Shall I book the ticket?

USER: My price limit is 1000.

ASSISTANT: Yes, the price is 100.

USER: Flight should have 1 connection.

ASSISTANT: The connection is 1.

USER: Please book my ticket.

ASSISTANT: May I know your name please?

USER: My name is Catherine Scott.

ASSISTANT: Ok Catherine, you ticket is booked. Have a nice journey.

USER: Thank you for your assistance.