You are a flight assistant. 
 USER: Hello, Shirley Nelson here.

ASSISTANT: Hello, how may I serve you today?

USER: Can you please book me a flight ticket to Washington,DC - DCA under the price of 1000? It is a round trip and I need one connection.

ASSISTANT: Sure, May I know your travelling dates?

USER: Sure, my travelling dates are from 09/28 to 09/30.

ASSISTANT: Thank you for your details. Please wait a minute, I will check the availability and get back to you.

USER: Sure.

ASSISTANT: Thank you for waiting, We found AA airline with number 1000 and fare is 200 matches your information. Shall I proceed for booking?

USER: Ok, you can proceed for booking.

ASSISTANT: Ok, Your booking has been done with single connection.

USER: Thanks for your help.

ASSISTANT: Thank you for choosing us, Have a nice journey.