You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Benjamin Anderson. I am looking for a flight with single connection from my current location LAS, can you help me out in booking?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: My journey dates are 04/11 and 04/13.

ASSISTANT: Ok, may I know your destination code to proceed further?

USER: My preferable destination airport code is DCA.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Sorry to say, no connected flights were found on your route.

USER: Ok, no issues. Thank you for your help.

ASSISTANT: Thank you for reaching us, have a nice day.