You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you find direct flight for me?

ASSISTANT: Sure, may I know your travelling airport codes please?

USER: My airport codes are from MSP to DCA.

ASSISTANT: On which dates you like to travel?

USER: My travelling dates are from 10/02 to 10/04.

ASSISTANT: May I know your name please?

USER: Myself James Phillips.

ASSISTANT: I am sorry no flights available on your dates.

USER: It's ok. Anyway, thank you for your help.

ASSISTANT: Thank you for choosing us.

USER: Most welcome.