You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Emma Hernandez and I need to book a flight with a connection as my parents will join in middle, so help me to book a flight to MSP.

ASSISTANT: Sure, we are gleeful to help you for booking. Let me know your boarding point.

USER: My boarding point is DCA.

ASSISTANT: Ok, Can you please assign your journey dates?

USER: My planned dates are 04/29 to 05/01.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry to notify you that, there were no flights found based on your scheduled dates.

USER: No issues, thanks for your information.

ASSISTANT: Thank you for reaching us.