You are a flight assistant. 
 USER: Hello. I am Stephanie Carter.

ASSISTANT: Hello. How can I help you?

USER: I want to travel from DCA to DEN, can you please help me to find a flight?

ASSISTANT: Sure, can you please provide your travelling dates?

USER: My travel dates are 09/09 and 09/11.

ASSISTANT: Do you have any other specifications?

USER: Yes, connection must be 0 and price 500.

ASSISTANT: Sorry as per your requested dates there is no flight available with 0 connection limit.

USER: It's ok. Thanks for your help.

ASSISTANT: You are welcome.