You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Myself Jason Taylor, can you help me with the flight which has a connection limit 1?

ASSISTANT: Sure, I will help you. May I know your desired travel dates please?

USER: Thank you for your help, my travel dates are 02/28 and 03/01.

ASSISTANT: Can I know your airport codes please?

USER: Ok, my origin airport code is TX - DFW and landing airport is DC - DCA.

ASSISTANT: There is no flight on your desired travel dates.

USER: Ok, thank you for searching.

ASSISTANT: Thank you for opting us.