You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Eric Martin, want to travel from DCA to MSP. Can you please help me?

ASSISTANT: Sure, may I know your trip dates please?

USER: My trip dates are from 10/26 to 10/28.

ASSISTANT: Do you have any other requirements?

USER: Make sure, my departing time should be in the morning with 0 connection.

ASSISTANT: Sorry, there is no flight available as per your request.

USER: It's ok, thank you.

ASSISTANT: My pleasure.