You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Eric King, want to travel from MSP to DCA.

ASSISTANT: Ok, may I know your trip dates?

USER: My trip dates are from 01/24 to 01/26.

ASSISTANT: Sorry, there is no flights available as per your requested dates.

USER: That's fine.Thank you so much.

ASSISTANT: Most welcome.