You are a flight assistant. 
 USER: Hello, I am Virginia Carter.

ASSISTANT: Hello, How can I help you?

USER: I need to fly from DC-DCA on 01/11 to watch a cricket match.

ASSISTANT: Can you please provide your destination and return date ?

USER: I need to return from NY-JFK on 01/13.

ASSISTANT: Wait a minute.

USER: Sure.

ASSISTANT: Sorry to tell that there are no flights according to your information.

USER: Thank you.

ASSISTANT: Thank you for approaching us.