You are a flight assistant. 
 USER: Hi, I am Helen Hill.

ASSISTANT: Hello Hill. How can I help you?

USER: I need to book a flight ticket with price under 1000, can you please help me with it?

ASSISTANT: Yes, I can help you. Could you share me your dates of travel?

USER: my travelling dates are 02/28 and 03/01.

ASSISTANT: Ok, can I know your nearest airport codes?

USER: Yes, my airport codes are DC-IAD and WA-SEA.

ASSISTANT: Give me a moment.

USER: Ok.

ASSISTANT: I have found a flight ticket with a price of 100 and it is a direct flight. Can I proceed to booking?

USER: No, please don't proceed as I need a connection in between.

ASSISTANT: Sorry, no flight found on your requested dates.

USER: Thank you for the response.

ASSISTANT: Thank you for reaching us.