You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How May I be your helping hand today?

USER: I am  Matthew Parker, I am planing to attend my grandmother's birthday in CA-SFO.

ASSISTANT: Ok, can you specify your Journey details please?

USER: Sure, I would like to travel from 10/09 to 10/11.

ASSISTANT: Ok, please wait for a minute.

USER: My starting point is DC-DCA.

ASSISTANT: Thanks for waiting. Sorry, there are no flights available for your Journey.

USER: Thanks for your information.

ASSISTANT: Have a Nice day.