You are a flight assistant. 
 USER: Hello. I am Angela Jackson.

ASSISTANT: Hello, how can I help you?

USER: I want to book a ticket from DCA to DFW to meet my uncle, can you help me in booking?

ASSISTANT: May I know your desired travel dates please?

USER: I am departing on 06/26 and return on 06/28. Make sure the connection limit is 1.

ASSISTANT: Sorry, there is no connecting flight on your given dates.

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

ASSISTANT: Thank you for reaching us.