You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Kathleen Roberts. I need to book a direct flight from JFK to OAK to meet my mother on her birthday. Could you please help you in doing that?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are 08/25 and return on 08/27.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: Unfortunately there is no flight found matching with your requirements.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for reaching us.