You are a flight assistant. 
 USER: Hello, I am Jason Anderson.

ASSISTANT: Hello. How can I help you? May I know your travelling dates?

USER: I want to travel from JFK on 07/07.

ASSISTANT: Please mention your destination codes and dates.

USER: I want to return from LGA on 07/09, as my business meeting ends on 07/08.

ASSISTANT: There are no flights with your details.

USER: That's fine, I will find an other way to travel.

ASSISTANT: Thank you for approaching us.

USER: Thank you for checking.