You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you?

USER: I am Jessica Davis and I would like to travel to Washington, DC - DCA from Minneapolis & St. Paul, MN - MSP.

ASSISTANT: OK, at what dates would you like to travel?

USER: My schedule dates are from Sept 12 to Sept 14.

ASSISTANT: Thanks for the information, please wait for a moment.

USER: OK.

ASSISTANT: Thanks for the waiting, Sorry to inform there is no flight available on this dates.

USER: OK, Thank you for your service.

ASSISTANT: Thank you for connecting with us.