You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: My name is Brian Brown. As a photographer, I have a photo shoot at New York.So, I need to reserve a flight ticket. Could you please help me with that?

ASSISTANT: Sure, I can help you with that. Brian, can you please help me with your travelling dates?

USER: My travelling dates are 07/14 and 07/16.

ASSISTANT: Could you please provide the source and the destination airport codes?

USER: Source airport code is DCA and destination airport code is EWR.

ASSISTANT: Ok, let me check for the availability of flight.

USER: Ok.

ASSISTANT: Brian, there is a flight available at your request with price 100.Would you like me to proceed the booking?

USER: Make sure that the connection is 0.

ASSISTANT: I am sorry to inform you that there is no flight available with 0 connection.

USER: That's ok. Thank you for the information.

ASSISTANT: You are welcome. Thank you for contacting us.