You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Lisa Garcia. I would like to travel to Washington-DCA from Denver-DEN to attend workshop.

ASSISTANT: Ok, can you please share your travelling dates?

USER: I am departing on 02/25 and return on 02/27.

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

USER: Make sure the connection limit 1.

ASSISTANT: Lisa, I am sorry to inform you that there is no flight available with 1 connection.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for opting us.