You are a flight assistant. 
 USER: Hi, I am Jack Roberts.

ASSISTANT: Hello, how can I assist you today?

USER: I am planning to visit New York city Marine drive could you help me in booking my flight ticket within 1000. I prefer a single connection.

ASSISTANT: Sure, may I know your journey dates?

USER: My travelling is from 02/29 to 03/02.

ASSISTANT: Can you please provide your airport codes?

USER: I would like to fly from DCA to LGA.

ASSISTANT: Ok, please wait for a moment, I will check and get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting, I found a Delta airline flight, flight number: 1011. It is a direct flight. Shall I proceed with this booking?

USER: Ok, proceed with my booking. No, sorry I prefer a connection.

ASSISTANT: Sorry, no flights available with one connection.

USER: Thanks for your help.

ASSISTANT: Thank you for choosing us.