You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Stephanie Baker.

ASSISTANT: How may I assist you?

USER: I have to exhibit my arts at National Galley of Art Washington. Can you be my helping hand in booking a ticket?

ASSISTANT: Please provide travelling dates?

USER: My preferable dates are from 06/23 to 06/25.

ASSISTANT: May I know the departure location.

USER: My airport codes are from LAX to DCA. Flight should contain 1 connection.

ASSISTANT: Flight number 1009 with airline Delta can be availed.

USER: Price limit should not exceed 500. Can you provide price and connection limit?

ASSISTANT: Price is 100. I regret, there is no connecting flight.

USER: Don't book a flight. Thank you.

ASSISTANT: Thanks.