You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My name is Eric Lopez. I want to visit The White House, can you help me in booking the ticket?

ASSISTANT: Could you please provide your travelling dates?

USER: It's from CLT to DCA and the dates of travel are from 03/31 to 04/02. Please make sure the connection limit is 0.

ASSISTANT: Sorry, there is no flight available with connection limit 0.

USER: That's ok. Thank you for your time.

ASSISTANT: You are welcome. Have a great day.